Adjusted OPS-plus (OPS+): You might be familiar with OPS, which is simply on-base percentage added to slugging percentage (forget, for the moment, that they have different denominators). OPS+ is simply OPS adjusted for park and league conditions. It's scaled to 100, which means that 100 indicates a league-average OPS adjusted for park and league. An OPS+ of 110, for instance, is an OPS that's 10 percent better than the league average. On the other end, an OPS+ of 85 is one that's 15 percent worse than the league average. It's useful in that you can make a thumbnail comparison between, say, a hitter in Coors Field in 2000 to one in Dodger Stadium in 1968. It helps correct for the two things that most often corrupt unadjusted stats -- home parks and eras -- and it leans on the the two most important things a hitter can do -- get on base and hit for power. - Dayn Perry
This is where the magic happens. Players who are able to immediately accelerate the barrel  and in turn get the barrel on plane “early” (in front of the catchers mitt) in the swing will continue to play for a long time. This is the phase of the swing that is barely seen by the naked eye in real time. Phase 1 happens so fast in most big league swing that all most people see is contact and the release, thus making it look “effortless”. In reality there was a lot of effort in the swing, it was just the right kind of effort.
Not only that, every baseball player in any situation would benefit from improving their hitting power. This has to be a focus of yours. Technique and power development can be trained simultaneously in the same training program and not overlap one another. So go to hitting practice, hit the gym, and be the guy the other team doesn’t want to see in the warm-up area.
At the point of contact, we see a culmination of every drill worked on for power thus far. First, from the interlocking throws drill, we have a good palm up, palm down path at the point of contact. From the half and full turn drills, we see she has great hip rotation to the ball, from the paint stick and don’t squish the bug drills, she has excellent weight transfer to the launch point, so great that her back foot has come off the ground and moved forward. She is generating power from the lower half and harnessing it with her bat path. The crossover drill is a great drill to finish off the set of previous drills designed to generate power for softball.

Power development for batting performance can be improved drastically through proper strength and power training. It is not to be trained through these ridiculous imitations of sport specific movement such as adding resistance bands or tubing to your bat and taking swings against the resistance of these tubes. I’ve also seen implements being attached to cable systems while mimicking swing patterns as well.

On-base percentage (OBP): Unlike batting average, on-base percentage doesn't ignore working the count to earn a walk, stepping into an inside pitch or being such a terrifying hitter that one gets pitched around and/or intentionally walked often. There are four players with more than 2,000 career walks: Barry Bonds, Rickey Henderson, Babe Ruth and Ted Williams. And we're supposed to ignore that and concentrate on batting average? In its purest form, OBP is basically measuring the amount of times a hitter does not make an out. With only 27 precious outs in a regulation game, this stat is paramount. That this isn't mainstreamed as more important than batting average makes very little sense to me. [For more on AVG vs. OBP, click here. I wrote a lot more about it] -- Snyder

The second number in a slash line represents on base percentage. This is calculated by dividing the total times a player gets on base (hits, walks, and hit-by-pitch) by a player’s total number of eligible at bats, essentially all trips to the plate minus events outside of the batters control, like reaching on error and hitting into a fielder’s choice). These “eligible at bats” are calculated by adding regular at bats with the total number of times walked, hit-by-pitch, and hit into a sacrifice fly. That gives you the following formula to calculate on-base percentage, or OBP for short.
On base percentage (OBP) or on base average (OBA) is an important component in a sabermetrics styled view of offensive productivity, but it is by no means the ultimate statistic to measure a hitter’s value. Unlike AVG and SLG, OBP does take walks into account, but it gives the same weight to a home run as it does to a single or a walk. Obviously, those are events in a baseball game that don’t have the same value in terms of producing runs. Billy Beane was quoted once as saying that OBA is three times as important as SLG. Well, is it? Not from a sabermetrics view point. Sabermetrics isn’t based on money at all. Bill James and the folks that blazed the trail for the development of sabermetrics certainly know that a home run has more value than a walk. It just so happens that players that had an ability to get on base were not paid as well as some of those who racked up RBIs. Obviously, the players who do it all get paid the most.
Certainly this feat also involves an almost instantaneous ability to estimate trajectories. In the case of the frog, researchers have been able to locate specific nerve cells in the frog retina and in the brain which are excited by small, dark, moving objects. The frog apparently pays no attention to these objects until their images begin to grow bigger on his retina, indicating that they are moving closer to him. If all other visual cues are right, out goes the tongue.
Some of these can be dismissed while others can be countered.  You can say power hitters are more valuable because they draw walks, but there are also non power hitters that draw walks that would benefit as well.  A majority of those power hitters are early round picks so you’re really putting their value where it should be as opposed to increasing it.  If anything, the non power hitters that draw high walks benefit more from this. 

Charlie Metro: "The good hitters get their tip-off from the pitchers. And there are many, many ways that a pitcher tips off his pitches. He grips it like that [fingers straight over top of ball]; there's your fastball. When he throws a curveball, he chokes the ball [wedges it between his thumb and forefinger, gripping it on the side so it sticks out]. Now see how much white of the ball shows on a fastball? And how much more white shows on a curveball? . . . Another thing is when they bring the ball into the glove, when they come in with a flat wrist like that, that'll be a fastball. When they turn their wrist like that, it's a breaking pitch. There are many, many ways, and the good hitters pick out these things . . . facial expressions . . . human habits and characteristics will tell."
There is a very important Biomechanical Principle that pertains to the initiation of the baseball swing. The principle states: "A ballistic motion, once initiated, produces trajectories that can only be changed at its margins." This means, the forces applied to the bat during initiation produce trajectories that will set the tone for the entire swing. If the swing is not initiated correctly - little can be done to compensate for it.

There is a very important Biomechanical Principle that pertains to the initiation of the baseball swing. The principle states: "A ballistic motion, once initiated, produces trajectories that can only be changed at its margins." This means, the forces applied to the bat during initiation produce trajectories that will set the tone for the entire swing. If the swing is not initiated correctly - little can be done to compensate for it.
A Strong Core is essential to a softball player. So why do so many players have a weak abdominals? Good question. This is another exercise routine that can get lost in translation.  You’re not training your core to look good in your bathing suit, you’re training your core to be functional; to rotate when you swing, open up and rotate when you throw, stabilize your hips and create balance.  Your goal is to mimic your core work in a fashion that transforms power onto the field. Here is a favorite exercise of mine to create rotational core power; rotational medicine ball throws. Start in your hitting stance and hold onto a medicine ball then rotate into a swing. Sounds pretty simple but super effective. My second favorite is bear crawls with bands. The key to this exercise is doing it correctly. Your butt should not be up in the air, back stays flat and your feet should move forward outside of your hips. This is a definite twofer. This exercise hits the hips and core in one movement.
Fossil evidence indicates that early humans hunted and ate other animals, and this seems to suggest that our catching and throwing capabilities may well be rooted in our development as hunters and tool users. Hitting or catching a moving animal requires an ability to estimate its path in advance. These are the basic skills required for every game of catch and throw, but for our ancestors, they may have been requirements for survival.

In the final iteration of the "MLB's Worst Tools" awards, today we will discuss hitting for average. Right off the bat I have a problem with describing "hitting for average" as a tool because batting average is a statistic not an innate ability. Additionally, at a blog that champions sabermetrics it probably isn't worth talking about batting average a great deal. In fact, I'm pretty sure the higher ups wouldn't let me. [Editor's Note: He's right] I know that if I mention RBI's in a non satirical way I will be shot on sight. Partly because of my personal distaste for describing the fifth tool in this series as "hitting for average" and partly because I fear the violent wrath of Beyond the Box Score's cruel overlords, from this point on the tool discussed today will be referred to as "hitting for contact".