Hitting the Mini Polyball will Improve a Hitter's Focus
If a hitter can see the ball so well that it looks like a "beach ball', he will have little trouble hitting the pitch. If you can somehow "slow the game down", the incoming pitch will be readily seen with plenty of time to identify the pitch and put a good swing on it.
How do you slow the game down?
At every level the game gets faster. The running is faster, the reaction time in the field must be faster, and the pitching speed gets faster. Faster pitching speed allows the hitter less time to "size up a pitch", to identify it and to react to it. A good exercise it baseball vision training is to get the hitter to get used to slightly faster pitching than he would see in a game. If the hitter is used to tracking 80 mph fastballs, 75 mph fastballs will be easy to track. In fact, 75 mph fastballs will seem S-L-O-W. Why is that? Because he is so acclimated to the higher speeds that real game speed has become almost like "playing down".
Hitting fastballs that are a little faster than real game speed, hitting curve balls that break a little better than real game curve balls and hitting pitching that is slightly better than real game pitching will all sharpen a hitter's focus and make real game speed quite comfortable.
The mini polyball / small diameter bat
When it comes to vision training another twist can be added by using a smaller ball to hit. Imagine now, hitting a smaller ball than a regulation size ball AND having that ball come in at a higher speed than game speed. The hitter's vision and reaction capability is pushed and challenged to a much greater level than merely hitting a "slower and bigger ball" as he would in a game.
Can you apply this to curve balls?
Yes. Hitting a golf ball size curve ball is going to be harder to hit than a "big" baseball size curve ball. Tracking a sharp, good breaking mini wiffle ball is tougher to hit than a bigger ball that doesn't quite break as sharply or break quite so big. This improves a hitter's focus and the smaller ball improves the hitter's vision.
Add a small diameter bat to the mix.
If you really want to challenge the hitter and train his vision and hitting focus add to the equation a smaller diameter bat. Hitting the ball with a smaller bat requires much more focus and precision than hitting with big war club of a full sized aluminum bat.
There are a lot of hitting sticks out in the marketplace. The short comings of most of them is that they can't duplicate the size and weight of one's game bat. Why would you take hours of batting practice with a bat that is 4oz lighter than your game bat? That type of practice will ruin a hitter's timing. For a practice bat to be useful it MUST be the same weight AND the same length as his game bat.
The Grobat
There is a practice bat that can mimic any game bat size and length - it is the Grobat made by Sports Products Consultants. The bat comes in four different sizes along with a choke collar, between the four sizes and the choke collar most bat lengths can be duplicated. The grobat also comes with a weight pack that can be added as needed to duplicate that weight of the trainee's game bat weight.
Vision training for baseball can take on many forms of odd exercises. The best of these training protocols is hitting better pitching with a smaller ball with a smaller bat.