Right, first off my hs33 has been bled through fine, no air in the system, the pistons return quickly and respond immediately when you pull the lever. The problem is that they move out to nowhere near their full extent when the lever is pulled. This means that even when the pads are close to the rim, the lever needs to be pulled nearly to the bar. Secondly, I've just replaced the pads on my BB7 and put a new disc on after the last pads and disc were contaminated, its all set up fine and should have bedded in by now, there is no way that the new disc/pads could have been contaminated. The brake is soooo noisy, and the hold isn't great, the only thing I can think of is that the pads might be glazed, if they are, will if stop of its own accord?.....fixed:)