Have had a Harbor fright one and used it for a couple of years. it isn't designed for low amp TIGging. Just picked up my new Digital elite Have had a chance to use it yet but it does fit nice for me.
I think that the head gear is a matter of choose and the amount you use it. And the length of time using it in a day.
Here is a great review on another forum of the elite digital low amp TIGGing ok goes down to 5amp or less. lots of senors for out of position welding http://www.millerwelds.com/resources...ad.php?t=11548 cover the helmet like a blanket.

Answer to your second part question they have cheater lens that go inside the helmet or you can wear glasses since the recommend that you have on safety glasses and flash grade at all times.
I do wear mine which are also safety glasses sometimes and sometimes I don't. They have magnifier lens y7ou can get in different strengths to use.
Last edited by PTSideshow; 10-09-2008 at 12:51 PM.
Glen
Been there, probably broke it, doing that!
I am not a lawyer, and never played one on TV!
All the usual and standard disclaimers apply. Do not try this at home, use only as directed, No warranties express or implied, for the intended use or the suggested uses, Wear safety glasses, closed course, professionals only