user92626
G.O.A.T.
(Green part) Exceptional knowledge you got there, mister. You're 100% correct.If he’s watching the opponent’s arm (or their racket head), there is a very good chance that he is actually employing a subtle no-hop SS variation that you are just not seeing — cuz it is much more difficult to detect, to the casual observer, than a standard (robust) Split Step.
I started discussing this no-hop SS alternative on Talk Tennis more than 15 years ago. It is a SS variation that is sometimes employed by competive badminton players. I started teaching this alternative nearly 20 years ago to older tennis players as well as overweight / unfit tennis players. In several threads in the past, I have referred to this as a geriatric SS or a no-hop SS.
For this alternative, instead of hopping, the player simply quickly lowers their body, with a moderate, or even a slight, knee bend. They timing this movement to the hitters swing & contact— they may very well perform this lowering (sinking action) as the opponent makes contact (or as soon as they hear the opponent’s contact).
This action primes the muscles and sets them up for a modest SSC (stretch-shortening cycle). This action is not as explosive as a conventional SS but it can still be quite effective in getting the body to move in a direction to intercept the opponent’s shot.
Often, when players execute this no-hop SS, they may have more weight on their toes & the balls of feet than on their heels. Again, this might be difficult to detect unless you watch slow-motion HD closeup video of their movement.
https://tt.tennis-warehouse.com/index.php?threads/split-steps-for-older-players.372906/#post-5503976
https://tt.tennis-warehouse.com/ind...ff-trying-to-split-step.584685/#post-11021968
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He told me that he bends lower when he anticipates / watches opponent & ready to run. I didn't mention that because I thought it wasn't SS & unimportant. But as you said it's no-hop SS. Damnit the guy was already performing a mastery that I did not know about. No wonder he's fast!
Another thing that kills me and others is while we're concerned about FH strokes, etc, he seemingly just does anything he can (various-looking strokes) to get the ball in play--more obvious with difficult balls. He's not so concerned about forms. And he gets a great deal of balls back.