Bob-O, it would take a huge amount of uh... popcorn to knock a hole big enough. All it does is fly upward and outward and fall back in the hole. The huge craters you see are from 250# or more of stuff.

It takes miniscule amounts to "loosen up" stuff for normal excavation, and that works wonders. But digging with the stuff alone doesn't work with normal amounts.

Shrimp