The play where the snap comes back to the holder and he places it down on the tee. The kicker runs up and plucks it right off the tee and runs for a score.

Is this legal???

If not, where can I find the info?

There was a thread here not too long ago on this scenario. I looked but couldn't find it. You might want to try and search for it.

The ball is dead when the kicker picks it up. 4-2-2a-exception 1 - The ball remains live if,... catches or recovers the snap while on his knee(s) is on the ground and places the ball for a kick, or if he rises to advance, <b>hand</b>, kick or pass. Since the holder did not rise, if he is holding it down for the kick, he is in contact with the ball when it is touched by a teammate (the definition for handing) - so the ball would become dead because the exception was not met.

Hmmm. I should have read the current threads before posting my last question.