I "seasoned" the entire firearm, except the grip, twice. Now I use the Froglube exclusively to clean the R9. A couple of times through the barrel with a snake (with a little Froglube on it), then a couple of dry patches. It should look like a mirror. A microfiber cloth will usually remove the carbon/grit elsewhere. When you season the firearm don't forget to apply Froglube to the magazines. Since you are wiping off the firearm after the waiting period, don't be afraid to coat it heavily. If you do add some to the slide/rail, do it sparingly then gently wipe it off. Froglube is not grease. If you can see it, you have much too much on the firearm. I'll probably do the heat application each time I replace the spring. Remember that if you want to remove any Froglube from the grip, Simple Green is great stuff. Good luck. I wish everyone would look at the youtube vid. It is 20 minutes well spent. Doc