Love that untz jamming in Twost! There was one jam before where I heard Fishman do it for maybe 1 measure, i can't remember what it was, but this is the first time EVER I believe where Fishman has played an actual untz drum beat. Even in Runaway Jim, he doesn't quite do it. But for the last few measures of this Twist jam before the return to the theme, you hear Fishman pounding that kick drum in quarter notes, and for part of it he matches the snare hits with the kick drum, albeit littering the spaces in between with accented notes.
Twist definitely still had legs, Trey wasn't done jamming that, but Fishman pulled the ripcord when the energy dipped a little bit.