Another update. Although the Dynamic saddle is better, I'm still not as comfortable as I would like, even after making fore/aft and tilt adjustments. So, I tested an SMP Drakon, which is a Dynamic with more padding. Definitely better. Since I already bought the Dynamic, while I'm waiting for the LBS to work out an exchange, I decided to try the Arione again. I installed it in the same fore/aft position as originally fitted (more forward) and set the tilt at 1 degree down in front, as per a Fizik you tube video. Well, umm, the Arione feels a lot better than it did before, validating some of the previous comments.

I'm going to ride the Arione for a few more rides, playing with setup, and then go to the Drakon if not happy. Thanks again for the good info.