I went to mattias freak guitar camp in sweden over the summer and my UV777BK was lost in shipping so Mattias wen thome and got a guitar for hiself and i played his number one untill my guitar showed up. Heres what i though about it.
string tension seemed a bit odd, felt like playing springs, not too loose not too tight very odd.
the neck was not thin more likek a stra thickness with a more square profile in back.
could not get the trem to go out of tune and workmanship was totally flawless, amazing work.
Mattias like shis action hihg so i can tcomment on that really.
over all, i can honestly say that i wopuld never in a million years buy that guitar for myself. totally not what i expected. But int might be exactly what you are looking for. i can only tell you what i thought of it.