That's fine. All that device needs to do is ground one of the pins, and there are two grounds on the joycon rail.I have a ns-atmosphere injector bought years ago and it came with a RCM Jig but to me the pins look to be in the wrong place to work.

The pins look fine.I have a ns-atmosphere injector bought years ago and it came with a RCM Jig but to me the pins look to be in the wrong place to work.