Well, I've managed to figure out the difference in shape between the SF5vi and the RE2s I was using before, and now they seal... but due to the weirdness of my right ear, the right ear's seal is rather tenuous and sometimes it makes a creaking "bare butt against a vinyl couch" noise lmao...
I really wish UE would have put the mic lower on the cable. Over the ear means the mic is behind my jaw... =/
I should really just invest in customs. Wonder if anyone makes customs with the send/end/play/pause button and the mic?