Delayed foul call

[hbioteach]

A1 hip checks B1 near basket as shot goes up. I'm the L, 2 man. I hold whistle. A1 as a result of the contact gets rebound. I blow foul on a1. B1 shoots 2 shots on double bonus.

What are your thoughts on holding whistle on rebounding fouls until rebound is made or until the direction of the rebound is going?

I try in general to pass on rebounding fouls when the player who was fouled gets control of the rebound without being displaced.

I should have blown whistle immedaiately and got an earful from the coach of A. Explained the call and he seemed to understand.