For some reason I'm the only one here who's comfortable on a Selle Italia Turbomatic. Maybe you can give me some company. In spite of the gel, it's not a super squishy saddle, probably comparable to a Ruby. Sounds like you might be comfortable on one of SI's Flite series, too, which are all very T-shaped and 145 mm in the rear. Some SI dealers have an array of test saddles, not their entire line, but some you could try.