Thanks for all the responses again (love this board). I think I'm already using the ER70S6 rod. What I may do next is see about getting a thinner electrode and rod for really low amps. Funny thing is I've got Covell's video where he does patch panels on an old Morgan. I thought I followed his directions....

See pic of enclosed welding project for view of my welds (bat-proof mailbox made from 3/16" plate, DOM roll cage tubing, and scrolls). Thick stuff sure is easier...