Personally I hate brazing. Why fill with a non-ferrous material, when you can fill it with MIG steel. No doubt it has it's place, but personally I have not found it.
Brazing gets right into the pores of the metal. I'll grind away as deep as I can, then I have to live with the splatter as I Mig over top of it. Not ideal, but it's all that I got.
Waiting to hear from someone with more knowledge on this subject as well.
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