Re: Long vibrating floyd rose
Might be worth doing a forum search for "flutter" by title.
Assuming new/good strings and trem angle setup correctly (90-degrees)...
Things to check: tight fit of the arm (bushings) & armholder (screwed into baseplate), studs locked (set screw) and burr-free to accept a clean knife-edge on baseplate. A variable you can change to some degree is the (3) springs... too strong a spring and it will decrease flutter. 10 springs might have different pulls. I used to stretch the string for a few days (to drop pitch and stretch springs if needed) but you can file the outside of a spring to lessen it's pull permanently ... glen