Some 7 years ago I had Core Seats (Lincoln) alter my diabolically uncomfortable seat on my Gen3.
They did a good job and it was much improved but after a while I realised it could be better so when I damaged the seat I had another chat with them.
Old seat:
New seat:
Not a big change but it gives me more horizontal seating area. It feels fine to just sit on but I haven't chance to ride yet.