Ricky
I've been using tuf-cloth/tuf-glide for several years. By far it is the best lubricant/rust preventive that I've ever used. Having oil on a knife when you're going to use Sentry Solutions just gets in the way and messes up your cloth if you're using one. If you're using Sentry Solutions for the first time on knife, gun, anything, wash with warm water with dish detergent. That will get dirt and oil of all kind off of it. Dry completely, then use Sentry Solutions. If you're not comfortable with it, use it twice. Did you know, those guys have a tank with salt water in it, with a Colt .45 in it. When I saw it, it was in there about 18 months, with no sign of rust.
It can be rubbed off, say you wipe down your pistol, then practice your drawing technics for awhile, you will rub streaks off the gun.
It's the only thing that I can put on bead-blasted ATS-34 and not worry about it rusting in between shows.
Dennis Phillips
ICCKnives