Ok, after putting on my hyper-technical hat, I see what you are saying.
I took Johnny's question to be that he desired to know if it was legal to block a shot that had already hit the backboard, was still above the level of the ring, was not in the cylinder, and had a chance to go in.
I simply replied that as long as the ball was still on the way up, then this is a legal block per the Simplified & Illustrated reference that I already cited.
In otherwords, I took all of the other criteria as given. In the context of his question, I was not dealing with a ball that strikes the backboard, but is below the level or the ring, or has no chance to enter the basket, or is in the cylinder.
Of course, to answer the general case, you are correct to point out that all of those other factors need to be considered.
That's what I get for thinking that Johnny asked a relatively straightforward question. Perhaps I read to much into it, but I believe that he was seeking an answer for a very specific case.
We'll just have to wait and let him clarify. Hopefully, we've both helped him to understand this better.
