I too got monkey butt w/in a half hour of riding. The front portion of the saddle is too narrow for my butt, plus the slope of the seat makes it uncomfortable to sit on the rear portion. I tried a sheep skin on the seat. It was better but not great.
BUT I think I've solved the problem. I cut up an old foam sleeping pad and contoured it to fill and widen the front, lowest part of the saddle. After some experimentation, I glued the foam to the bottom of the sheep skin. Now with the padded sheepskin, when I slide back on the saddle the foam is contoured to keep me there and in the twisties, when I move to the front of the saddle, the foam effectively widens the saddle and I'm comfortable there too.
Ed G.
Moderation in all things, including moderation.
Oscar Wilde