these are called Purpose Tremors
This is the answer you're looking for.The other posts are ignoring your "remedy" of squeezing the cue to stop the shake. I have my reservations about this. I don't think it's ever a good idea to tighten your grip (unless you're dropping the cue in mid-stroke!). A loose grip is taught by most instructors and is used by most pros.
I would suggest proper breathing first. If that doesn't help, you may use a variation on your "squeeze". Try squeezing the cue and then relaxing your grip hand just before delivery.
Donny L
PBIA/ACS Instructor
Gainesville, Fl
I guess maybe noone picked up on this at the Derby but Stevie Moore has been spending some serious time with Earl from what I have heard... I noticed immediately when he showed up to the TV table that he was using a sport wrap to buildup the diameter of his cue grip like earl has done for years....
When I watched Stevie I was in total shock... The tremor he has had in his shooting hand for years was almost nothing but a memory..... I think the sport grip is allowing him to fill his hand now so to speak and has greatly reduced his purpose tremors to almost nothing.........
Not only was the tremor gone but he shot as good if not better than I can ever recall seeing him shoot on the bigger stage......