I think I see the problem. It looks like there's an extra 6mm or so of switch body sticking out in front of the lock buttons on the 200SX/Frontier switch while the S14 switch body ends flush with the lock buttons. Looks a little longer on the backside too.
FWIW the GC8 switch does not have this. At least this variation doesn't. You can see the front of the switch body is flush with the lock buttons.
https://subieautoparts.com/product/1...switches-lhrh/