Break the arc and turn the machine down 10 to 20 amps and repeat the process until you reach the lowest amperage setting. You only have to activate the arc for a couple of seconds.
I usually use the stinger and the largest rod I can get to make and break the arc on a piece of scrap. Hook the leads to an AC welder set on the highest amperage it will produce.
Try using the search function, there's plenty of reading on this topic. I believe you also received a suggestion to check out other threads concerning "arc blow", I don't recall how long you have been associated with the forum, but there are a number of threads that discuss possible methods for reducing the effects of arc blow and different approaches to help deal with it. As the other gentleman pointed out, possible using an AC yolk in the area that you are welding might be the answer to neutralizing or reducing it's effect. Are you nailed down to using a specific WPS? Could you possibly speak with them about using AC current? If so you might have an easier time by going this route. They had their best results from welding with AC current and E7014 or possibly E7018 AC electrodes. These pot lines were "highly" magnetic, strike an arc in one spot and watch an arc that looked like a lightning strike hit somewhere else. Hello awspartb, where I live Reynolds Metals use to have a smelter, pot lines, etc.
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