So I installed the old style switch with the magnetic upgrade 
The older switch is more comfortable imo. I really like the flat top.
The magnets drop in super easy on the new (rounded) switch, but I needed to sand out the tube that came with the older switch. If your magnets don't just drop in (and shake out) during your first fitment test, you'll have to bore out the old style tube. It wasn't difficult since it's made out of brass. Just be sure the magnets slide up and down easily before starting the "opposing" magnet switch re-assembly.
Once assembled and adjusted on the GGTS, the switch is AWESOME

The older switch is more comfortable imo. I really like the flat top.
The magnets drop in super easy on the new (rounded) switch, but I needed to sand out the tube that came with the older switch. If your magnets don't just drop in (and shake out) during your first fitment test, you'll have to bore out the old style tube. It wasn't difficult since it's made out of brass. Just be sure the magnets slide up and down easily before starting the "opposing" magnet switch re-assembly.
Once assembled and adjusted on the GGTS, the switch is AWESOME