Wood & Plexi: Screw in
Metal panel: Snap in.
The idea of snap-ins loosening is ridiculous, while screw-ins get loose FAR easier. The nuts come undone under normal wear and tear, especially in a metal control panel where the little dots on the top of the nut can’t grab into anything. Against wood, I’d expect the nuts to hold on tighter, but the main reason I wouldn’t want snap-ins on a wooden top is because a good amount of force is needed is pop those suckers in, and the force could cause a plexi top to crack or wear out the wood after a few changes.
The nuts also make installation difficult on HRAP layout panels; the buttons aren’t spaced properly and the nuts get in eachother’s way on the buttons closest to the stick.
If you’re dealing with an HRAP stick, snap-ins are the only way to go. On a custom wood stick, go with screw in, and try to find a way to help secure the nut, like maybe hot glue.