After riding on the Kinekt twice now, I really like it. Doesn't totally eliminate bumps, but definitely a lot better. The bumps that I do hit now, aren't as jarring. I did have to adjust the preload, otherwise I was bouncing a lot when pedaling. I think I'm at a 4 right now. I'm using the XR with Purple Red. I may try tightening a little more or go up a level in springs.
Also, I noticed that the reason the original Specialized seat post didn't slide into the seat tube as well as I would have liked was due to the wiring for the rear seat light getting in the way. I put some more of the wiring inside the seat post and get a lot more range without it getting stuck.