Oldred I obtained a 6G cert when I was only 19. I am 35 now. So my experience does not come from backyard welding.
Eveyone has their oppinions as you have stated. And I can only talk about my experience.
The post I made was out of a well known welding site. LincolnElectric.com. Maybe you have heard of it...??
Look for yourself...... I guess we should inform Lincoln that they have stated some incorrect info....
I am only providing information .030 - .045 welding wire used on a 115V or 230V portable welder like Miller 135/175 or Lincoln . So these readers need to understand that we are talking about a certain type of welder and wire.
Here is a link for Lincolns .035 flux wire:
And here for their .045 flux wire: http://www.mylincolnelectric.com/Cat...ed&locale=1033
I personally run Miller welders. But Lincoln had a better description of MIG (Metal Inert Gas) vs. Flux (FCAW)
I hope some of this info is helpful and has shed some light on the smaller 115V/230V welders and welding process....