I am off to buy an air cooled torch, any recommendations? I will not be running much duty cycle, not a production environment. I would like to occasionally weld to the max of the 300DX, Mostly aluminum in my future, I would like fingertip control (at least on / off) since some of my work will not be...

I just purchased a Dynasty 300DX with a water cooled troch but no cooler. Can I run it without cooling at air cooled amps and duty cycle or is it going to be a problem?