some guys can do it better then other guys, but just yesterday I took some splices apart and the wires were completely straight. The only thing holding them togther was the wire in the nut. THis can be very hazzardous especially on a kitchen circut were there is a good chance to have a large load on it.
And this work was just done by another EC. Im sure it wasnt the boss doing it, but on of his minions. But some people need to be shown how to do it the right way. On a rare occasion I have come across wires that look twisted but are acually a very loose connection. I wish I still had the wire nut I took off a micro circut. It was a poor connection due to just twisting with the nut. I remember the guy who did it too and he always said it was ok. Anyway the wire nut was almost completly melted and this always stuck in my head,(that and my boss at the time would not have it). But I do agreee that some guys can do it properly but I still use my linesmans. I really dont want to increase my chances for an accident.