I know its not the preferred method but it's all i got and all I can afford right now. I hear alot of ppl say flux core isnt good for body panels I like a good challenge lol. I will say this when your underneath welding overhead it's like satan is spitting on you haha. I ran out of my good lincon wire working on my rearend and all I had is this crap I bought from Amazon to try out its call blue demon it sucks I hate it sparks and throws **** like nothing iv ever used I have burns all over me from this crap. I gotta order me some more of the good stuff.