Just got back from my first rehearsal with the BB800. Drummer didn't turn up so it wasn't really a good test, but I really liked what the BB800 was putting out. I never planned or worried about using the EQ, the stomp was going to do it all, but I'd say 80% of the night was with the Stomp in bypass mode. I really liked the EQ, although it took a few mins to get used to it.
I do still love my GK MB800, and agree its so powerful even when flat. I was going to sell it but can't face getting rid of it.