Tig torch...

I've yet to see an air cooled torch that was as small any any of the water cooled torches that I've seen and used. The size factor alone makes me very resistant to an air cooled as I've had many times when the water cooled torch was too big to fit where I needed to go without resorting to 2" of stick-out. I did not notice any difference in weight. I did notice how hot the air cooled got when the gas flow was appropriate for the weld. When I'm going to be extended out and can't otherwise take the lead strain off my hand I wrap the lead around my forearm. Good/bad practice, I don't care. It works for me. I've only had it bite me once and I was knowingly pushing 250 amps thru a 200 amp torch.