The Lithia was close enough for me to ride it for nearly 6,000 miles, until it was good and worn out, but it was a bit too squishy for me. That's why I went with a Jett next - nearly identical shape, but firmer.

I've only got maybe 600 miles on the Jett so far. It's definitely better for me than the Lithia, but as I said, on longer rides I do get what sounds like exactly what you're describing. I'd say it's right between the lesser trochanter of the femur and the ischium, which is what leads me to think I need an even more T-shaped saddle. Not sure there is such a thing short of a Brooks... But again, it's possible even less padding would solve the problem - and again, the Jett is close enough that I'm keeping it 'til it's worn out.

OTOH I'm not sure that I'm completely adapted to the Jett yet, and/or that it's completely broken in.