Host Mammoth, any bad experiences?

As far as off road use, I haven't done much and don't feel comfortable doing so. It's so top heavy you get a lot of rocking and flexing. Not sure how much you can get away with but I don't care to push the limits and have to deal with a poped weld. I have a good bit of experience with using aluminum for structure. I have built a few aluminum boats and use them in some of the roughest conditions offshore or in the swamps of Louisiana. A little to much flex in one spot can create a crack pretty fast. If you don't see it, then the next high stress area will go, and so forth. I will say that welder on my unit, made some good solid welds with good penetration on areas I can see.