I have a Seat Concepts seat that has never been installed, cover and foam still brandnew in the box, yes it’s for sale if anyone is interested .
A friend has a Seat Concepts seat so we traded seats one day for a couple hundred miles, yes Seat Concepts was definitely an improvement over the stock seat but I still wasn’t satisfied so I never installed the brandnew in the box one on my bike, I bought a used Corbin instead, as long as I’m not riding rough roads the Corbin is comfortable for me, on rough roads the Corbin is to hard.
I put 500 miles on a friends Russel Day Long seat and other than being a little to tall for me the Russel is great and I plan on buying one someday.
Seats are a very difficult thing a seat that’s perfect for one rider is sometimes trash for the next rider, my opinion the best motorcycle seat ever is the stock seat on my Honda Goldwing but there are plenty of riders that hate that seat.