What is your opinion of Sentry Tuff Glide? Is this similar to what you are using?
I have used it for years on pistols and rifles after seeing what it accomplished for dirt, sand and after cleaning. Things just don't stick to it at all. Cleaning can be as easy as wiping it down to remove fouling. Sand and dirt just fall off with a tap.
I have seen with my own guns, that when applied, the slide operates like it has bearings rolling it back and forth. I'm not saying they were grinding before but it is a noticeable difference.
I've also not had any rust on blued guns after treating with it either. Keeps the noises out of the recoil assemblies on Glocks too.