Discover essential techniques to improve your MIG welding root pass in this informative 21-minute video from Weld.com. Learn how to address common issues such as bad tie-ins, non-fusion, and whiskers. Explore topics including proper fitup, machine settings optimization, dry run practices, and techniques for 2G open root MIG welding with large gaps. Master the art of feathering tie-ins, opening tight root gaps, and fixing plate whiskers. Gain valuable insights on repairing missed tie-ins to enhance your welding skills. Perfect for both beginners and experienced welders looking to refine their MIG welding techniques.