balk towards 2nd base

[WillSun]

I know you guys must get frustrated with a rookie like myself, but I'm just a volunteer coach trying to learn as much as I can.

I have been told by more than one ump that in Dixie Boys, you MUST pitch from the stretch with baserunners. Which only makes sense, but they are very strict in teaching the boys proper form.
We have a kid on our team who is a great pitcher, but a few years back he was in an auto accident and has pins in his legs and a plate in his hip. It is difficult for him to pitch from what they consider the stretch, and he is constantly getting called on balks...