I bought an Anatomica when I was still getting saddle sores on my B17 after over a thousand miles on it. The SA is better for me, I had it on tour last year and it took about 2 weeks and then I got a sore in about the same place as before. Still, better than the B17 for my particular butt. It does squeak, and I have had to adjust it quite a ways out in a relatively short time (2.5 yrs).