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I dunno where you guys shop, but the orange and blue stores in Danvers seem to have pretty good help. I'm usually the "I can find it myself " type (even when I can't), but my successes rate with the people at those 2 stores is good enough that I usually ask right off.Lowe's is more convenient to get to so I usually go there (the lumber is just as curly in both stores).
I found the only way to locate stuff is to use the app. That usually get's you to the right aisle and bay. Usually.