Re: what kind of Tremolo our on a uv7bk?
I would stay away from the 7-string packs, at least i've never found a good set. Only kind I've ever seen was daddario 9-52, you do not want a 52 on for your B, way too flimsy if you wanna play anything heavy. So what I do is get a regular pack of strings like 9-42 and then get a 56 or 58 for the B. 54 isn't really that bad either, just somethin about that 52 that i hated.
You tune it like a normal guitar. strings 6-1 you tune E to E. What comes before the high E string? The B string; so the same would come before the low E