Chris75
Electrician
If you think that clamp closes the gap, you are smoking crack. That clamp is about an inch long and the cable is about 3/8 thick. Draw a picture and do the math. The gap in the opening is exactly as big with or without the clamp. Have you ever actually worked in the field?
And, there is NOTHING wrong with slipping sheathing over wires.
Guys like JW are just wound way too tightly and do not allow themselves to think freely.
I agree, I used to dislike 220, but then I realized I was just brainwashed by mike holts code forum.