Dr. Arnold's Changeup Newsletters
It's most underrated and underapprecaited pitch in baseball. The changeup can make ANY pitcher better, no matter how fast/slow they throw because:
"Hitting is timing. Pitching is upsetting timing."
-Warren Spahn, 13 20-win seasons
There have been important stories over the years on the changeup so I've done my best to make newsletters about them (click on the link for the newsletter):
Questions About The Changeup?
Contact (PitchingDoc@msn.com / 631-352-7654)