OK, so in my situation what makes SMAW the max to be welded. Is it the fact that is was the majority of weld metal used in the test piece? Or maybe because it was the fill and capping process used? Let's for arguement say this 5/8" coupon was welded with 5/16" of GTAW and 5/16" SMAW. Would it still be the SMAW, and only SMAW that is max to be welded? I know you would probably not ever do it this way, but I am curious.