I have two of the no-dogs.. one stays on my hard hat until I lose it, then the second one comes out, it will help with bigger EMT and certainly rigid, some guys like the Greenlee style , I just don't have one of them,
>>I think the bubbles are too small for me<<<

I use a no-dog for bending anything that I won't bend by hand, which anymore is anything bigger than 1"


Tom