My husband and I use the contender pad which is Back on track with a Thinline pad integrated with it. The horse like them. What my husband also used is the Thinline seat cushion. The story of his trying it out is both illustrative and humorous.
Husband would complain his butt hurt after a ride of 3 miles or more. I ordered a thinline seat cover before a major weekend trail riding event. First day we did an 8 mile mountain ride. This was the conversation as we went home.
Me: Did the seat cover work?
Husband: No It didn’t?
Me: Do you hurt?
Husband: Not really but I don’t think it worked.
Next day we did 17 miles conversation on way home.
Me: Did the seat cover work?
Husband: No it didn’t
Me: Sigh okay tell me where you hurt and I’ll see what I can figure out on getting you a new seat cover.
Husband: Well I don’t hurt anywhere but it can’t work it’s too thin.
Me: Two days in a row you have ridden further than you ever had before. and don’t hurt. It works.