"What at would be the negatives for potting?"
If you mean using the Epoxy to glue the wood body to the cart, it can't be undone. So, if it needs to come apart for some reason such as a repair, you won't be able to. I know people that have done this, but its been a while since I've spoken to them about this, so I'm not sure if there's any other reasons you shouldn't use Epoxy.
