fox: long ago, i went thru a long range high powered rifle shooting stage. i think we just used a zippo lighter to blacken our front sights... maybe not...hard to remember, as that was over 40 years ago.

did you say flammable gas, like acytelene?...now if i could just capture it and then of course control it...how exciting!

dave: are you still willin to part with dat can o carbide? if so, maybe i will get back to you.

keep it simple and keep it safe...