Good Vid on Pulsed Mig. After watching that, Check out Twin Pulse, that will expose the next level up from Pulse. I am lucky enough to have a Twin Pulse Mig unit that can be set up like an AC/DC Tig unit only with Mig. Either way, You can go back to regular mig or smart mig on these units if you don't want to pulse all the time. Cool stuff and it's getting less expensive to own every year.