I checked out a Arc welding book at the library and it has a technique for welding Al with a stick. I still have to buy the rods but can I be successful with an AC machine. It gives the directions (Don't weave the electrode, scratch to start, and keep a short arc) but says will work best with a DC machine. Does that eliminate my machine or just not as good welds. I am just talking about learning here, not welding on a trailer or anything important.