I did the sitbone thing at a Specialised shop with a shop assistant who clearly knew his stuff and for a deposit of £50 I think, rode a "demo" saddle for 300km in one day and was fine with it. When I went back to return the demo and buy one, I got a young assistant who said "oh that's the MTB model, you want the road saddle" which I duly bought.
Doh!!! it was alright for short rides but when a few months later I tried a long one it was not up to snuff. Unfortunately nothing on the saddle said what type it was, I couldn't remember the product name, nor could I find the receipt, nor could I find the saddle in a bike shop (not the Specialised one) that had lots of their saddles
I finally found the saddle for me, though, it's a no brand MTB saddle off a a cheap bike. It will soon disintegrate and I too will be faced with finding a replacement.
So... maybe try a Specialised shop and listen to your bottom and not an assistant or try a bespoke saddle maker and tell us how that worked out.