Hey there,
I got a uv70 metro direct from sadowsky about 4 months ago, guy thought it was alright so he ordered some metro sadowskys, some 5s and stuff...
if you pm me, i'll take my Sadowsky into basscentre and you can try it against the customshops and stuff... its a maple board so thats not what you want but you can get the idea of the feel and stuff...
a good mate of mine bought the first customshop the basscentre got and it is absolutely awesome! hes been playing it over a year now and it just gets better and better!
but you even with the rosewood board the uv70 is going to be more agressive than the jazz... the 70's bridge pu spacing and stuff changes it all...
cheers,
dave