To be perfectly honest and from painful personal experience, if you find your nirvana saddle, your bum caresser, your 'ring' mate, your perineum pal, your buttock buddy, just bite the pillow and buy as many as you can possibly afford regardless of the cost.
I had two years of painful suffering after I was 'persuaded' away from a beloved Flite TI onto a nasty, biting Spesh BG. If your bottom loves the Rolls then give it a Rolls to luxuriate upon.