I was having a lot of trouble with Bright Sun's original 4mm magnet switch. I believe it's too strong of a magnet for the hilt's hall sensor, causing some challenges in turning my saber on and off.

After some testing, I figured out that a 2mm magnet seems to work flawlessly. I remixed the original switch to hold this smaller magnet.

2x2mm Magnets:
https://www.amazon.com/Magnets-Refrigertor-Whiteboard-Durable-Multi-Use/dp/B07BSJNCF5?tag=tv-auto-20

Huge thanks to Bright Suns for their wonderful Savi's Workshop pieces!
https://www.thingiverse.com/thing:3722640