A change-up pitch when grip’d in a certain way, will have a rotation that will pass through the atmosphere (air) with turbulence surrounding it, due to the seam’s movement … but the seams can actually yield some movement due to the atmosphere’s (air) itself. When video is taken of THE SAME PITCH from several different angles and compared you can see this vividly.
A circle, or ring finger grip, seems to have the greatest chance of influencing this pitch in this way. (from my experience.) But remember, your grip due to your physical endowments – hand size, height, strength, analytical skills, will be different than say … the guy sitting next to you in the bullpen.
Also important, in order for this to work properly, the pitch must be released deliberately off the front foot once it’s plated firmly, and with deliberate stability. Also, your release point should be slightly higher than your fastball, but not overly so. (this you’ve got to fine tune yourself.)
I should mention that players 15 and under are not good candidates – but by no means does that eliminate them totally. It’s just that influencing the ball requires a ton of practice time, not to mention the resources equipped to give the player feedback on the success or lack thereof.
The statement made … “jump at the batter” … is sometimes associated with the properties of this pitch … and in some respect the ball will actually seem to slowdown…. then speedup just a tad — or even visa versa. Again, video taken of THE SAME pitch, from different angles will show this property (influence). However, let’s not go overboard here on speeding up or slowing down. The changes in flight can be there … but their not monumental.
I should caution you here with reaction(s) from some backstops. Sometimes this pitch is FOUL TIP’D right off the top of the mitt and rifles back against the cage of your catcher. Some batting postures are notorious for this. So, after an inning of getting “dinged hard” repeatedly … the other half the battery may be reluctant to give you the sign for this one. If your catcher sits in the dugout and constantly yells out … “will somebody answer that phone”, it’s that ringing sensation in the head that dings off the cage can sometimes produce. :crazy:
Great question !
Coach B.