After installing my rear floating disk brake, here are my thoughts..Yesterday I had a chance to try out the floating disk brake at the awesome Dry Hill in Port Angeles, Washington.
Installation was a breeze, and at 150$ MSRP for the whole setup, its a must have upgrade. All that was needed was the floater assembly (duh), 12mm dropouts and a 135mmx12mm hub. A conversion for your existing hub from a 10mm to a 12mm is available (at least for the revolution wheelset). To install the 10 to 12mm converter, all that is needed is to undo one nut and slide in the new axel accepter thingy.
Installation was about a half hour. Not bad. About half of a Led album.
Testing on Dry Hill was a perfect area with its varied terrain and an awesome flatbed truck and shuttle operator Miguel. The day started at a early bird 5:10 and on the road at 6. We arrived at 10 and the dirt was perfect. Loose, dry, and lots of chunder and roots. My first run was on the old sport course which became a lot rougher yet faster. The blindside let me float well and rail turns, while braking on the bumps was spike free and relatively smooth. The modulation on the Hayes Strokers kept me from skidding off, and did not break when I smashed into trees (I even found wet wood smashed into it, but brakes are perfectly fine).
Bottom Line: If you happen to bought or want to buy a blindside, get the rear floater. For 150$ and weighing in at... really light, its a good upgrade that you can install yourself.