as of late, any jam coming out of Gravity, has been doing it for me. very organic in nature, the way they cause periods of tension and release..
Here is a couple that I can remember of the top of my head really getting owned by.
1/12/02 Callahan\'s Jam->Merge->Help/Slip->Ep. 2
1/22/02 Blue\'s Cafe Voodoo Child(Slight Return) w/Mike from Sipowitz
6/1/02 Short Beach Wake Up in a Coma w/ "Coming \'Round the Mountain" jam
8/1/02 Band Slam China Cat-> Buquebus...For Jerry\'s BDay
8/2/02 Holyoke Puppetry->Ep. 2->Puppetry
8/4/02 Sun Fire Superfly Fatty Fat w/ Chalkdust and Bowie teases
By the way the BreakFEST even if it is only one day should be up at that place in Portland that the Sunfire was held at that place was cool and had a kitchen so there could be food. Had plenty of parking too so there would be no cap on Ticket sales and it was easy as hell to find.