Hi, I have been lurking on this site for over a year, I finally purchased a Lincoln 180 Dual to use for Automotive work and light fabrication. I am new to welding and I was wondering about this nozzle gel, do any of you guys use it, and if so, do you prefer one brand over the other and why? I haven't found much information on it. I plan on doing MIG and Flux Core and do I use it on both processes. I am concerned about weld contamination if using the gel, any help would be appreciated.