We both have Don West custom saddles but itheir made for gaited horses. Its VERY comfy. I have spent 4-5 hours in it, never getting off and not had any issues. Kinda on the expensive side though. My husband also has a Big horn flex tree endurance saddle that he says is very comfy. Still on the expensive side but not as bad as the custom. My first saddle was an abetta endurance saddle. It was ok for short rides but I couldn't spend hours in it without some butt and knee pain.
"Until one has loved an animal, part of one's soul remains unawakened..."
- Anatole France