After 600 hrs. of weld school, I finally got to tig weld my first tubing today. Did you know there are no flat spots on tubing! LOL Anyway I took a 1 1/16" ms tube in, cut it into 3" pcs and rewelded it back into one pc. Theres definately a learning curve. My questions for you guys that do rollbars, cages and dunebuggys are how many tacks do you try to get onto a tube before you go around it? Do you weld up to the tack or pass over it? Do you skip around the tube or just go around it in a circle effort? My first efforts were a disaster but its getting better by the weld so I'm pretty happy at this point. If I can tig it, I know I can mig it.