Yeah I just find chamois so uncomfortable on a mtb. On a road bike, where I stay in one position, it's fine. But on a mtb, I'm up and down so much that it really chafes and just feels so bulky and uncomfortable. And honestly, I've been mtbing for years and years and have never had any discomfort beyond the second ride. So I don't see the need. Something must have happened on my first ride this season, I'm just trying to figure out what. Plus, I ride full suspension down hill bikes. I'm only even in the saddle for the climb up. The entire trip down, you never sit. It's 3-6 foot drops, roots, rocks. So you're out of the saddle.