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I'll go with JWW's real world wisdom (there is simply no substitute for EXPERIENCE), rather than blindly accepting that stuff as gospel. Or just guessing that it is correct.
People have been installing these things for 15 years. As that "bulletin" says, the past few months have seen an increase in failure. Hmm, has the whole world started installing them in new manner in the past few months?
If I were doing this procedure (I did it, 10 years ago, using the standard procedure), I'd call Andial, Walker or some other reputable shop and ask how they do it. I'd be comfortable with their advice, rather than blind reliance and acceptance of that "bulletin," which contains stuff that makes one question its credibility, IMO.
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