I have the same hood and just used "standard" 2x4.25 lenses similar this one:
http://www.ebay.com/itm/diopter-3-0...488119?hash=item1eac955ab7:g:pCwAAOxyHIlTbj6g
The wire clip that holds the whole auto-darkening lens assembly in has enough 'give' to clamp a cheater lens as well...
I see you guys talking about using cheater lenses and have a question. Since I got into welding again after probably 20 years, I really have trouble seeing the weld puddle. I've been using some drug store reading glasses, but still have problems. Would the cheaters work better? I'm sure it is more convienient but what about actually helping to see what you're welding?