hi, i can't see brown sugars being more rounded than the bg50's as they're alnico v but overwound.had the same
dilemma myself when choosing.roundness would steer me also to country boys or yardbirds.the country boys can rock,theres an excellent clip on the players section after a long rythymn where there's a lovely solo.baldes track
also shows off the yardbirds(AIV) well but it's mostly clean.
the blackguards do it all, full of character overdriven, here's my attempt,pick up full out, no treble roll off, as it comes out of the amp