Thats the nail head you just hit,trying to figure out if its a little one or a big one,the pain starts off the same,if you stop every time a little spark gets you,you are going to be doing a lot of starting and stoping in some situations.I've seen more woman welders who do only t.i.g. if they can get by with it.People will tell you they make better t.i.g. welders because of small hands,e.t.c.,I believe its because woman hate those little burns and scares worse than a man does,and maybe they are smarter,nah! RICHARD GAUTHIER