Explore the debate between push and pull MIG welding techniques in this informative 21-minute video. Gain insights into which method achieves better penetration through a comprehensive experiment. Learn about short circuit and spray transfer MIG welding settings, observe the differences between pushing and pulling techniques, and examine the results through visual inspection and cross-section analysis. Discover the impact of navel jelly acid etching on weld profile visibility. By the end, understand the key findings to improve your MIG welding skills and achieve optimal penetration in your projects.