My friend has a private range and a group of us decided to run through a couple of agency qualifiers (FBI, Air Marshall qualification tests) and other drills. I wanted to see if getting my gun a little dirty would cause any cycling issues (this is my carry gun with over 20k rounds through it so far). So before we started I put the gun in the dirt, stepped on it to get it in a little more, flipped it and did the other side. I did get the idea from another guy I know from local shooting matches who did this in a class he had recently taken. No issues the entire 5 hour range day