I had Avids on my Rumblefish, and they were pretty good for years, but then they started getting squishy. It's funny what you can adjust to but you get to a point where the brakes are just so bad that you can't adjust anymore, and despite repeated bleedings, the Avids just wouldn't work. Once the new XTR is in, my wife is getting that, and I was planning on getting her "hand-me-down" XT brakes, but in the meantime I threw on an old set of Avid BB7 mechanicals - and I've got to say, I'm in no rush to swap them out. They're easy to set up, and they work great and feel fantastic. I was really amused by this as I expected it would be something I would "survive" until I got the other brakes, but honestly I'm not sure i'm going to swap them out. I doubt my old Avid hydraulics are going to be used again, though.