Well boys I have assembled 60 Glocks. From bone stock to crazy expensive race parts. And a bunch of pretty guns. I have my formula down , try to keep it close to stock as possible, add 2 or 3 extended parts. Change the ejector( stock one is cheap metal) and upgrade the recoil spring when needed. That's it. If you do more your just throwing money at it.
And I am NOT a fanboy I am just practical .