My comment about MC was not really serious. [Linked Image]

As for NM cable I would give it a try, I am for anything that actual uses screws for connections instead of spring pressure. (Wagos and the like)

If a spring type connector (wago) is rated for 20 amps this certainly should handle it better.

As for torque specs any of us that work with wires all the time would quickly get the feel of these.

I am curious about what Ryan mentioned, six inches of free conductor at boxes, it has always been good to have slack to repair something that does go bad, and even if these are high quality at some point some will need a repair.

The DIY thing seems like a non issue to me, they bury entire panels along with 4" squares and flying splices, I do not see this item making it worse.

Just my opinion, not on the payroll.

Bob

Bob Badger
Construction & Maintenance Electrician
Massachusetts