Hi fellow welders! I'm picking up my friends old cebora stag 180 at weekend, as i have an integrale to restore and although my pocket mig, snap on (cebora 130 turbo for the last 10 years) it does a good job, i think i need to upgrade for the next 10 years and dont want to struggle, can anyone tell me anything about the stag, it has a spot button and another but dont know what it does, it has lines and dashes, cheers Ant!