I actually contacted G5 and recommended they add the lock washers from the factory.

It's a cheap way to make sure that everything stays snug and G5 doesn't have to worry about guys like me breaking things.

On my bow I like blue lock tight items that will not be removed and plan on adding lock washers to things that I will adjust. Do I really need to do this to everything? Probably not. But they're preventative items that cost pennies now compared to hunting down a noise.