LEsoftballdad
DFP Vendor
I believe he's a former men's fastpitch pitcher, so this is normal for him.Money would be the number one reason I would be teaching (If I was the teacher) this method. The number of people that are qualified (whatever that means in fastpitch) to teach this way is very limited. Truely Japan / International players must have the most relevant pitchers to this set of rules. If they are doing some form of leaping, I would bet they have studied the mechanics to understand its potential benefits.