So if anyone has installed a set of WNG backchecks (when using their jig system at least), you know how easy it is to get the hammers to check literally as high as you want. This raises the question: what *is* the ideal checking height? What happens when it get too high, and how high is that? I have heard "as high as possible without binding" as often as I have heard 5/8", so that make me wonder if 5/8" is actually ideal, or somewhat arbitrary. -kurt
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