They have a 27.2x250mm and a 27.2x330mm post. I was wondering, is the extra 3" above the bend, or below the bend? Does anyone know the length of the seatpost on a '10 GF X-Calibur? I believe that would be a Bontrager SSR. All I see on the GF site is the 27.2, but it does not mention the post length. Will a longer post, going further down into the seat tube, be of any help avoiding the frame crackage issues on GF bikes over the last few years? Will a setback post put more stress on the frame?