I am currently building 2 bikes and have 2 miche supertype seatposts. I just picked up a velo saddle on saturday and I CAN NOT get it to fit either of my seatposts. The supertype has a (ridiculous) rail clamping system where the front has to hook into a groove, then the rear swings down to clamp onto the rails. For some reason, once I get the front hooked into the groove, it wont clamshell down onto the rails. It seems as if the rails are too large or something. I thought saddle rails are supposed to be universally the same OD? Has anyone else ever heard of this problem?