Looking for some input on suspension seat posts for the Great Divide. I scored a Trek titanium seatpost, and might stick with that- haven't tried it yet on any dirt roads, but it seems to absorb the chatter on crappy pavement. I'm considering the Thudbuster ST but am curious if others have had any success with seat posts like the Kalloy Guizzo seat posts- lighter, cheaper and more streamlined. I don't have much clearance above my seatpost bag and am 125 lbs, so smaller travel is preferable. It also seems like it would be hard to attach a seatpost bag to any of these suckers, so if you've got a picture, that'd be cool too. Thanks!!