Originally Posted by
LeeD
Do you think he actually changed his grip specifically for his second serve?
I suspect he used exactly the same grip, conti turned towards EBH, for both serves, only adding a slight wrist cock which accounted for more spin on his second serves.
He moved his body under his toss, so strikezone location is hard to pinpoint without vids.
CONFIDENCE was his strength. He could conjure up a fast topspin serve for his second serve when he had confidence. Otherwise, his topspin second serve was "more or less normal" speeds, maybe 80-90 mph.
Most S/V players tended to not wander too far from their chosen volley grips for other strokes.