I have a Scratch Pro TS in the 143mm width that I haven't used yet. I'm planning on putting it on a Look 555 that I'm still building up. The saddle looks really comfy. It has very similar dimensions to the Fizik Antares saddle that I currently use on my 595. The Antares saddle is awesome, so I have a feeling I'll like the Prologo saddle just as much. I wish I had more helpful feedback for you...sorry. In the end saddles are a very personal thing. If you're considering a Prologo saddle, just give it a shot and see how you like it. Worst case, you can sell it as like-new on eBay or something. Also, some bike shops do saddle demo programs. Might want to look into something like that.