Ha, you beat me to it. I was looking at a round file today. That would solve two problems at once. The diameter right the still feels a tad to small, I have gone back to the knife that i used as a model and it feels to small on that one as well. Your solution looks better than mine as a thought about losing the closest pin and crating a semi-choil before the under sized integral guard.
Feel free to get on my back any time.
Feel free to get on my back any time.