Got tired of loosening lock nuts and I know there are lock nuts with teeth that grab the wheel. But I figure this should work just as well. These 3racing locks nuts only costed 5 dollars and they weigh nothing. So I figure I would put them to good use.
Just use a regular hobby knife and well the picture explains itself. Grasp one side with two fingers and go from the inside out on the other side so the blade wont go near your fingers. Use good pressure when cutting so it creates a nice deep scratch.
Afterwards give it a feel , itll have a good grip now instead of being smooth metal. Now you wont loose a race to a loosened locknut.