Holding that whistle

[bainsey]

I worked a girls' tourney over the weekend, and one play sticks out that I'd like to have back.

A-1 is going on a breakway, with B-2 just behind her. B-2 has two hands on A-1 as she's driving, but A-1 can easily play through it, so I hold the whistle. At the last split-second, B-2 releases contact, and A-1's attempt hits the bottom of the backboard. I have nothing but a staredown from the coach, a veteran varsity coach. I can't argue with his silent dispute.

I'm not crazy about blowing the whistle immediately when both hands are touching in this case, for aforementioned reasons. In these cases, is it generally better to blow the whistle on the release? Am I wrong not to blow the whistle immediately every time there's two handed contact? Should I wait to see if the layup is good? (I've seen some veteran officials do this.)

I know I'm producing a HTBT, but what are your thoughts?