Airhawk, I recently purchased the "R" for my Street Glide. Yesterday was the first time I got to use it, I rode from Okla to South Dakota, little 740 mile trip. I will say that I've never tried any other type of seat pads on the market. But your product has got to be the best out!! This thing is amazing! I was skeptical when I bought it, I really didn't know if there was anything on the market to reduce the pain and pressure on my tailbone. I honestly thought your product was a little high priced but after using it for only one day I would now pay double! Awesome product!!