Tips I can give...

A good pair of gloves as well as make sure you have pants that you can run the cuff over your boot. Noting like a hot metal glob dropping into your boot.

I run the 25% gas as well and love it even if I am just a fixer hobby guys as well.

You will have to play with the heat range and feed speed depending on the gauge of wire you run. Trial and error but once you have your unit set with the wire your using its a breeze.

I like to work my weld like a U shape heating the new metal on each side as your filling the weld up.

Cheers Don.

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7/8th of an acre, Perch only pond, Ontario, Canada.