View Single Post
Old 11-07-2012, 06:29 AM   #54
sureshs
Bionic Poster
 
Join Date: Oct 2005
Posts: 32,886
Default

I read somewhere that ball machines cannot feed side spin. That is because they use two vertical counter-rotating wheels which squeeze and release the ball between them. So only top spin and under spin are possible.
sureshs is offline   Reply With Quote