Switched from Rock n Roll Gold to Secret Chain Blend.
I'd been using Rock n Roll for about ten years. It worked fairly well, but the carrier tended to attract dust requiring a fair amount of cleaning after each ride. What I noticed right away after switching to hot melt wax is that my drive train is much, much quieter, and dirt doesn't stick to the chain the way it did with Rock n Roll. I was getting around 3500 miles on a Dura-Ace 11-speed chain with Rock n Roll Gold. It will be interesting to see the improvement in terms of chain durability with the Hot Melt Wax.