what I did is going going with short wires from the solder joint of the dc plug to some of the unused points next to the dc part and adding pins there for connecting jumper cables. I have fried more than one board, so I just wanted to make shure
To answer this I use axoloti a lot for giggin and jamming, sometimes in very rough conditions like outdoor open air raves in the woods etc. and it has never failed me.
So propably the best is to write Johannes and see what he can do.