Back Welding Electrode Easy-of-Use Comparison
J1Z-40 As far as I can recall I have never welded with anything other than 6013.

I bought a variety of welding rods, 7024 Duralloy, 7018 and 6010. I wanted to try these since various people on the internet say that it takes practise to use these rods.

Happily I found that my welding was just as good (or bad) with these rods as I am with 6013.