hi.
you can find it on Glitterhouse’s wagon 7′ as the b-side. Don Flemming sings.
J mascis: guitar and vocals.
murph: right drums
jay spiegel: left drums
don flemming: guitar, vocals.
there’s also a thanks to Donna Biddle for playing bass.
left drums and right drums. Either that means that murph plays on wagon and spiegel on better than gone. Or it could be they have recorded both murph and spiegel and panned the drums to the right and left in the sound picture.
sounds fair. 
check out: http://www.keeblin.com
http://www.freakscene.net/bbs/viewtopic.php?t=4508
by the way, I have a canadian tv interview from 91, where J says that dinosaur had two drummers going on at the same time and two drumssets in their rehearsal room.