I have spent the last two years using only the PI shorts. I just recently tired on the Assos and the Specialized and decided on the Specialized as I could only buy one pair at the time.

The top of the line Specialized shorts have been working very well with my new 2007 Toupe Gel saddle.

I regretted not getting the Assos and plan to mail order a pair soon.

By the way, I wear a large in the PI and a large in the Specialized. I tired on the Assos and I would have to have an XL.

I just received a pair of Voler by mail from www.velowear.com and the XL were too big and I have returned them for a L. Looking at the pad in the Voler shorts, I am not too confident that it will be sufficient.