GreshFit is an official dealer of most top saddle brands: Selle SMP, COBB, Specialized, Terry, Fizik, ISM, and more
Using a sizing-cycle and special tooling (example below) you can easily test saddle options. Once a suitable candidate has been found, you have the option to further test on the road before buying.
Contact Tim Gresh at tim@greshfit to request more info, or schedule a sizing session. Cost is $75 for the session, with 50% credited back towards buying your own saddle through GreshFit at MSRP.
Cost for combining a saddle test with a Full Bike Fit (recommended) is $30 and 100% credited back towards your own saddle through GreshFit at MSRP.