I have several seat posts that use rubber bumpers, spacers(whatever you want to call them) and one uses a combo rubber and spring. However, both are prone to sticksion . I keep thinkning that a shock system like on cars would work a lot better. I do have the one that has the exposed rubber bumper and a double pivit system also. It seems to be void of sticksion, but it does not respond to changes that great. So, I still think that a shock system would not be prone to sticksion and would respond to changes better. Especially the small bump reaction would be better.
Any body have experience with one of the air shock systems I see coming from Taiwan?