over the last say day and a half, i've started doing a a/b comparison , between the 500, and the rs1i
both stellar, but different
the 500, powerful, strong, say like an american muscle car,
the rs1i , powerful, but more refined, it has manners european sports car maybe
hope it makes a little sense, still a work in progress
oh, at the present, the ps500, L'cushed
Crap! That puts the PS500 on my radar too.