Imo, biggest pro to the olympia systems (i use v2, but this applies to conversion too) is that if the notches wear out, you can just replace it, and with 3d fab companies you can get them in many materials for cheap. My personal build has metal notched gate and custom rumble bracket

Theres a 3d printable OEM faceplate conversion thats available now. Olympia and CarVac have been really fine tuning the predesigned/parametric versions. This is Lamonsters build. I have heard good things about the sparkplate too tho, and I hope he recoups his money, so def buy one of them too lol

I swear, one of these days I'll stop being busy and I can get back to making the jeff (n64 gamecube controller)