if it was my money, I am spending the extra $600 and getting the higher amperage and duty cycle of the MM255 every time, and most especially if you plan on welding aluminum. The 25% duty cycle @ 200 amps of the ProPulse just wouldn't cut it for me. I like to play with dual shield flux core which no...

I have a precision tig 225 and it's a good unit, but I find myself doing a lot of thin gauge aluminum, and wonder if it's worth the $$ to get an inverter tig? I could probably sell my tig and put some more money together for the Everlast 201EXT, but the Lincoln or Miller are going to be a $3k upgrad...