Originally Posted by socalrider

I usually need a post with a fair amount of setback.. I know that I am a little too far back when my back starts to tell me.. One of the nicer setback posts is the VO Seapost.. 30mm of setback.. These are also ideal if you decide to use a Brooks saddle which has very short rails.. If I use a zero setback post, I end up placing the saddle all the way back to the end of the curve in the rails, usually 20mm of setback is enough for proper adjustment..

http://www.velo-orange.com/vogrcrusepol.html