I'm just going off what I read in the article. If you get a chance, go to <a href="http://www.brotherstrucks.com" target="_blank">http://www.brotherstrucks.com</a> and look under "tech articles" for the 55-59 door patch panel.
I agree with you on the 3/8th statement of the blade...that is very true. But I don't understand the other point you are trying to get across.
Again, I come here to get good input on stuff, people who have actually done this before would know better than little old me...the guy who reads articles. This article just seems to make sense. You could zig-zag through both panels and in the end you should still have a match.