hey guys i figured there was a good amount of metal working knowlege out there so i thought id ask here.. i was kicking around the idea of getting a mig welder.. (not on a whim.. im an 'experienced' welder) so i can do my own exhaust and other various metal-bonding projects on and off my vx.. are there any drawbacks to mig welding and cars? (ie should i wait and learn to tig weld)