Alan (not a nay sayer) Benson, fantastic advice and oh so timely. I just did a few, and except for my first experimntal one, it went OK. The first got some burn though/undercut, (sacrificed!) but some adjustments fixed that, and the four I did after that got an 1/8" bead via carbon steel flux cored. (.035 very low voltage, med speed) Right on the edge. Then some grinding with 60Grit AL/OX on the grinder, bit by bit to keep cool. Just sharpened the bead only, so I have about 1/16" build up as an edge. It took a while, (The grinding, not the welding) but I have 4 usable bits now. I'll let you all know how long they last. (FYI carbon steel wire is a little pricey and hard to find in small rolls - but I can find other uses for it.)
