Originally Posted by sennoc
I analyzed almost every replay of Federer's volleys during last 5 years. Thousands of shots. I saw just a few examples when his foot landed on the ground at contact. He lost all these volleys. He hits in the air. Check other good volleyers. Henman. Sampras. Check them frame by frame.
Is it step and hit but the hit is a split second before impact on the videos of federer you studied? how far up in the air was the lead foot? Just the lead foot is airborn right?