Bill,
When I was in business I was a "Pre Twister" too. I didn't trust a splice unless I twisted it before I used a wire nut. As for the Wago style of connectors, I have not used them myself. ( I am out of the business of contracting and inspecting only) I am inspecting a large residential project in one of my towns where the buildings are all between 5-7 stories tall. A union contractor in one building and a non union contractor in another building are both using the Wagos because they feel that it speeds up the install time. My main concern was the fact that the NEC/UL stopped using the pin-backs on receptacles for # 12 ga but they will allow it for these connectors. They seem like they are good and worth while, but I was wondering if anyone had any complaint about them so far
