No...

But have you considered recovering your Ringo seat using better quality and more supportive material if the footprint (or butt-print in this case) is more ideal vs. your larger seat that cuts into your thighs? Or even modifying your larger seat to have some thigh relief?

The now discontinued Pearl D2000 Roadstar throne had a unique seat that had thigh relief as well as some relief for the perineum area as well. Unfortunately they didn't combine these features (you chose one seating style over the other) which I believe to be the downfall of the product. Anyways, check out the angle they applied to the padding to get some relief in the thigh area. A good upholstery person (especially with custom automotive background) could shave some foam and cover your seat in no time, providing the relief you seek!

Roc and Soc (or similar) bicycle shaped cushion thrones are the boomer-aged drummer's best friend (along with the newer or older light weight hardware). If you have never had a throne with a good back rest you owe it to yourself to try one out. I don't mind packing and carrying a heavy throne because I know I will get the full benefit of all that weight. I also use a tall but very adjustable Pearl timpani throne for playing congas as well as timpani. I used the compact but hard Ludwig and similar thrones back when I was young and immortal but think a good throne is the best investment you can make (after cases, good cymbals, stickbags, I will stop now)...

Is this the Premiere bicycle seat throne or the Ludwig porto stool throne?

I’ve been doing everything I can think of to downsize what I lug to gigs, including going back to a light weight vintage throne. Most things I have downsized have worked out great, and a few haven’t. If I’m going to park my bony butt longer than an hour, I bring a modern, heavy, dual-braced throne with a plush tractor-type seat. It’s more than a luxury. It’s a butt, thigh and back saver.

Josh

I bought a Ludwig porto seat throne earlier this year to sort of match up with my vintage kit, and it is the worst throne I've ever owned. Yes, it is adjustable, but not comfortable at all. Best result I get is the smaller part of the oval forward, but I am about to give up on it and turn to one of my other thrones, vintage be damned!

I have a roc-n-soc but I’ve been using a low end single braced Yamaha throne I got with my D20 kit.

It ever-so-slightly offsets the three 900 stands I also drag along.

I only get back pain from the mass of the stands, not the seat.

Set height is really critical. Those antique thrones look cool but of your over about 5’-9” you are sitting too low. You want a slight downward angle to your thighs or you will hurt. At 6’-2” the trap-stool is not an option for me.