I just got the Parts Unlimited seat. I have the 2 up touring seat. I put 2300 miles on in 5 days shortly after installing it. Its a Great seat. I did start to get sore after about 1300 miles, but that's probably got very little to do with the seat and more to do with the stryker in general. I'm 6'4 and I didn't notice any difference in riding position with the PU seat over the stock seat.