[mickmate]

I can't weld like that but have worked with a couple of guys that can. They told me not to hold the filler rod right in the joint but to feed it in in a regular rhythm as needed and use it to control the temperature of the weld pool. That would be as well as the pedal of course. It's a trick to get going as there's a lot of noise, magnesium alloys burning etc all going on. The trick I found is to use the amp per thou rule and get right into it with full heat to start the melt of both parts to be welded and then use the filler wire to help control the puddle heat. Also play on some scrap to get your AC balance so it's getting penetration without getting sooty or peppery.