They do fit tighter, and I certainly don't have little thighs. For regular clothes I'm a size ten, but it has to be a relaxed fit over the thighs and the medium RS shorts fit me well.

I really like the chamois. It's where it is supposed to be. For me the PIs have too much chamois on the inside of the thigh. I had one horrendous Shebeest experience and have stayed away from them ever since.

Once I find a short I like, I tend to buy a bunch.

slinkedog, If you can, try them on at Bicycle Outfitter. I think they carry Sugoi. Last time I was there, about 18 months ago, you could return anything you didn't like, no questions asked. I got my first pair of Castelli shorts there (my previous fav) and then bought more here once I knew I liked them.

The RS I took a chance on after e mailing Susan and asking if she had tried them.

Good luck!

Veronica