I'm finding the seatpost is slipping slightly on rides. I was simply going to replace the clamp with a twin bolt jobbie, something like THIS, and use some carbon assembly paste, but, when I went to measure the seat tube for the clamp size I was reminded that the frame has braze ons that the current pinch bolt fits into. This doesn't leave much room above them for a clamp. So am I stuck with it, (I'll still whack some carbon paste on it anyway), or is there a way to fit a clamp to this frame, or any other better set up than just a pinch bolt? BTW it only moves about an inch over 20 miles, but it needs sorting.