NR 211 is good wire for sure but NR 233 or 232 seems to work a lot better, got more tensile stenth and elongation to it from the paperwork they sent me for the different wires, and its what Lincoln recommended. 211 isn't recommended to be used over 3/8 or 1/2 inch thickness (I forget which) in most applications even if you gouge it out deep. I recently welded a split lip on a 14 yard trakhoe bucket 4 inches thick and about 2 1/2 foot long, gouged it out about 3/4 way from one side and welded it about 1/2 way out so that I had maybe about an inch to fill yet, then gouged out the other side and weklded it to about an inch away like the first side. then I just jumped back and forth 3 passes here 3 passes there til it was done filled in. Had the bucket on it side as there was work to be done on the back of the bucket and they were workin on the motor in the shovel, and rebuilding one of the hydraulic cylinders, so we could pretty much do what ever we wanted to with the bucket. This was in October, they are still runnin it wide open digging some very hard jackstone and the lip and all else is still good...so I guess we did somethin right. We were outside when we did this and it worked ok, unless it rained , then we put up tarps and umbrellas and had torpedo heaters and lotsa coffee
Yeah jet arc is the way to go for gouging, another good thing is to preheat this stuff like crazy, we heat it up so that spit will sizzle on it.