I used Cerakote c series for the first time and it was not as strong as I expected. I cerakoted a ruger lc9 with glacier green. For prep I let the gun soak in acetone over night, and then I sand blasted it the next morning using new 70 grit aluminum oxide. I know that is a littler rougher media then recommended. I then sprayed it using an air brush. At the regular wear points, the cerakote is wearing faster then the orgional bluing did. I can also scratch the cerakote off of corners with my finger nail. I thought this stuff would be stronger than this, unless i messed up somehow. What are your guys experiences with cerakote c series?