Well he is not trying to do San Mai construction so give San Mai instructions won't help.
One difference with welding on the edge steel, (and by the way "The Celtic Sword" Radomir Pleiner has exampls of this construction in it). is that the welds dont get the multiple passes you get doing pattern welding where each time you weld you essentially weld all the welds over again making them better.
So multiple welding passed as has been mentioned will help.
I keep hoping that James Hrisoulas will chime in as he has a lot of experience in this. IIRC he has mentioned that his new book is going to include some info on this technique.
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Thomas
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