Finger weights?

[Thompson]

I do fingertip pushups sometimes, but not because I'm thinking about getting faster at cubing.

 

[nickvu2]

I'm curious about this since I play piano, what effect do people think piano playing would have on cubing?

I think it would depend on how you play. Slow and soulful wouldn't help much. Your best bet would be fast, technical stuff. ...Flight of the Bumblebee, anyone?

 

[The Bloody Talon]

training for strength is different from training for speed...
heavyweight boxers are slower compared to lighter-weight boxers even though they are stronger

 

[Isbit]

I'm curious about this since I play piano, what effect do people think piano playing would have on cubing?

I find that I get "calmer", less shaky hands when playing piano, and thus I can make more accurate turns.