I just bought a tube of butt'r after using dz nuts and Enzo button hole, I like the butt'r best. I've never had chaffing, just discomfort in the soft tissue between my site bones and saddle. Though I have had a couple bouts with saddle sores from riding a seat with too much padding, I guess that to be sort of chaffing.

I have a narrow Terry FLX saddle that's well reviewed. I think it's 130mm, a demo version. If you would want to give it a try let me know. You can look it up online.