I don't recommend any grease for any firearm. Grease has a tendency to harden over time and slows down the cycling of the action. Stick to the slide glide.
He's a promoter like everyone else trying to make a buck off his name like a long line of other competitive hot-shots....I can list a dozen shooters who've endorsed similar products over the decades.Brian Enos owns Slide Glide and has it made to his specs.