I ride in 4 different dressage saddles and the only one I can use daily without a seat saver is an Ideal Jessica.
I ride 2 different horses in the same Black Country saddle and it requires liberal amounts of sudocream and a gel seat saver. Ditto the Humfreys & Swain holistic treed saddle with a nice wide seamless seat that ought to be comfy but creates sores that make me leap out of the bath. The Albion SLK ought to be sold as a contraceptive...