Kent,
I think it is very possible...better to be lucky than good.
While trying to pack it, I found a very soft spot in which the dozer kind of sank down. I believe that was a cavity or something. It was kind of scary to hit it while sitting halfway up the backside of the dam that was leaking. The thought did cross my mind that maybe the whole thing was going to give way. Its holding great right now, no sign of leaking or moisture at all.
