Hi sparker,
that seems very strange, I can't understand how it would work, never seen seen anything like it, how do you stop when you have finished the weld, if you are stitch welding something? sounds impossible. I bought my arc welder in 1964 and it has been in constant use ever since. The mig I bought 25 years ago has always been problematic and I haven't used it for several years, don't have the time to sit down and fix it