[officialtony]

While I am aware that under NFHS rule set, it is a balk to feint to 1st base from the pitchers rubber, I do not know what the OBR rule is.
Can you tell me, under OBR ( MLB ) is it a balk to feint to 1st:
a.) while on the rubber;
b.) while off the rubber ( jump spin or jab step, etc. )?

I know very little about these rule sets and I am starting to do a travel team ( 15-16 year olds ) that play under OBR ( MLB ) rule sets. I am trying to learn the differences between NFHS and OBR. I have to find some reference manuals that will show me the differences as well. Any help there will be appreciated.

Thanks.