Welcome to the forum rich00man!
It's quite possible the band you saw was COPE! Which is funny, because this Tampa based band is good friends with many of the BOS/SOS who populate this forum. In fact, I believe their campsite/jam spot is right next to Waneetopia (the BOS/SOS group campsite), near the lake.
Yes, Juan is a superb sax player.
I'm excited for their Wednesday night set on the mushroom stage!!!