[ace]

Heres a theory that some of us use while on the court, and if you ask me its the only one to use when officiating. Advantage/Disadvantage. Did B1 put A1 to a disadvantage when he pushed/made contact? From your description I would say yes because A lost contact and as you say was forced out of bounds. So call the push or block on B1 and move on. From your description it sounds like you made the right call. So sleep easy and toss 'em straight!

Ace