Am riding with both Thomson seat posts and stem's on my road and MTB. They are the best thing since sliced bread, IMHO. Highest of quality. I really like the adjustments on them. Can easily move the saddle a very small amount. I ride with a Prolink saddle, which has some sort of suspension built into the rail system. And must say that it was a REAL improvement over anything else I've ridden. I don't use the setback seatpost as I prefer to be more forward on my bike. Short arms and short legs, I guess.