I was wondering how the current model 200 dx does on the (AC welding) tail out on welding. I never liked the way the older model tapered out the arc. In fact I hated to with a passion. Does the soft sq wave arc help calm that issue down some? It's a pretty mature design by now, but I have not welded with one for about 6 years or so.. I am thinking of a small ac/dc tig, and there is quite a few options. I would not need anything but the machine itself, because I have the rest of the things to make it work... That right there makes the machine more in line with the others in cost, so it makes it sort of pencil out.. The HTP 211 holds some interest too. and I would save about $500.00 (Don't care about 120 volt use) Over time the $500.00 difference will fade pretty quick too. You would always get it out on the other end anyway.. (Miller good that way, and the dynasty 200 is one of their best in resale value)