I just installed Gotoh FR style tremolo to replace my original Floyd Rose from 1985 on Japanese Fernandes superstrat. So far so good. Stays in tune. Beware that you might have to drill the holes for the posts of tremolo. It is not a big deal. The aluminium insert post is 10,8mm and I used 10,5 drill bit, worked perfectly. I will post the update after couple of shows to tell you how it performs on stage for 2 hours under heavy load! But for now - I highly recommend it.