Saw them open for Sonic Youth on the (I believe...) Rather Ripped tour. With an exception of Entrance Band, they were the worst band I saw open for the Youth. The best was probably Magik Markers (on the Nurse tour).

My buddy saw byop open for some other lame band right before they split. Said they were acting pissed and rude and shit and played all shitty and pissed off...

Best opener for me: Sonic Nurse tour as well, Sonic Hair Wolf! Holy shit.