General Cycling DiscussionHave a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!
I doubt a seat post will make any difference. CF, AL, Steel....they are all very stiff and rigid. There isn't much play at all in a seat post regardless of material. Saddle rails might make a difference, but not the post. Get a better seat.
As mentioned before there are numerous posts designed to absorb vibrations and impacts. The Specialized Terra post is great.