I have a PSA FN barreled upper with keymod handguard and it has a low profile gas block with two set screws. It's never given me a problem so I'm leaning towards doing nothing. But it's my go-to rifle so I wanted to at least explore opinions to increase it's robustness.

Should I dimple the barrel in one spot for the set screw to avoid a possibility of rotation one day? The one screw is accessible without taking off the handguard. The gas block is obviously already installed so it's positioned correctly and the screw hole would serve as the guide. I could just drill in the 1/32" or so for the dimple, then reinstall the screw with some high heat threadlocker. Probably would take 10 minutes.

Yay or nay?