ISM saddles and Crits?

How have you been liking the PN 3.0? I’m thinking about buying one. I recently tried the Fizik Argo Tempo but it felt a little too wide at 150mm and a bit stiff for my liking.

I have a prologo that came with my CAAD12 that causes some serious pain after about 25 miles. The weird thing is that it comes and goes and there is no soreness after my ride so it may be my position.