I've got about 500 miles on the Glamour this spring, on a new bike. I like it for about 40 miles, after that there is not enough padding for the 'sit bones', no matter which shorts I wear. I used to always have problems more towards the front, and it works well for that.
I can't seem to get it just right either. I had a Koobi Si that I put about 1500 miles on, and it got too soft. I have a Terry Falcon on my other bike, and that's good for about 50 miles, then it bothers me a little all over.
Maybe I should not ride more than 50 at a time.