Hand speed drills for ground strokes and spin serves

[eah123]

One of the things I noticed when warming up with a South American pro is the incredible amount of spin he can generate with a compact stroke.

I think one of the reasons he can do this comes from growing up doing "Spanish style" tennis hand-fed drills to develop fast "hand speed".

I found these drills from Connecting Tennis to develop "hand speed" on your forehand

and spin serves.

But I've not seen much emphasis on "hand speed" drills from other online coaches - almost everything is focused on the "kinetic chain" (generating fast racquet head speed by pushing up from the ground.)

What do TT coaches think? Worth doing?

 

[Curious]

Shadow swings without the racket.
First try to swing the whole arm fast, then try to swing only the hand fast ( just like throwing a ball). That’s what this topic is all about.