I have a 65 SG Junior with a vibrola . I think it looks cool but , in my experience , there is less down pressure on the bridge than if the strings were simply wrapped around , and the sound is less firm as a result . Also , I get unwanted overtones from the B string , a pinging sound , at the bridge when using the tremolo . However , for gentle shimmers these units do have there own thing going . Finally , if mounted on Gibsons with the shallower headstock angle i.e .late sixties into the eighties , that and the lack of pressure on the bridge can cause the plain strings to pop out of the bridge saddles when bending - especially on SG juniors and Specials - I've owned several .