NoControl
Look Ma, No Hands!
I've used Proofide for years, and I like it. However upon a friend's staunch recommendations, I've tried NikWax on a brand new Brooks B17 Special that I mounted on my Surly ECR. I must admit that I like it much better than Proofide. It sinks into the leather and really looks nice after buffing. Hey, it's for waterproofing climbing boots! Brooks says twice a year for Proofide. NoControl says once a year for NikWax.