I have the regular wedge. Fatter in the back than in the front, and I use that with a fuzzy pad.
And it was OK... I am wanting to re-evaluate that, though, before next year's season, to see if the current arrangement is still right for him. I think it's possible that I need to add some pad to the center of the span of the tree, to prevent bridging.
The good news is, now that we have a trailer, we can take him to the saddle shop and have him fitted, instead of the guy having to guess what to bring with him and come out here.
I only question 2 things about it. One I find it hard to believe it stays in place, but you said it did and the lady at the store says they stay. Since I don't seem to have a choice its the only thing I could do. And two, it feels alot like neoprene I wondered how much heat will build up under it. But on the plus side, I actually think it will be more cushy as I don't think it will flatten out as much when I sit on it as the foam did in the pad I am borrowing.
I will do my best tomorrow to do a really long, 3-4 hours, 4mph ride. That should tell me if it works.
Becky