Upgraded PiCade Max Controls

I just built a PiCade Max and it is A-MAZE-ING!

I’m wondering though if anyone can suggest compatible and higher-quality upgrades to the joysticks and buttons?

The stock joysticks, for instance, while not bad at all, I’m thinking could be a little beefier and more responsive. Not to mention quieter. ;-)

I’m a bit of a babe in the woods with arcade cabinetry though, the Max being the first I’ve built, so I’d appreciate any feedback, suggestions, etc. tons!