07 and 09, not as if Nadal was playing at a high level during that time. It's all we have to judge this match up on, and Nadal is just way too mentally strong for Safin and would frustrate the Russian by getting everything back, especially in a best of 5 match.
Nadal had just won RG for a third time and was a point away from probably defeating Federer at Wimbledon, so suggesting 07 was a low level Nadal is a little silly if you ask me.
Where Safin has a great weapon against Nadal is the two hander crosscourt. We've seen Djokovic, Murray and Nalbandian hurt him with that shot, either the ball shanking off his racket or he's too far out of position to get to the next ball.