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Old 06-01-2022, 05:29 PM
jonfields45 jonfields45 is offline
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Join Date: Jun 2011
Location: Allentown, PA
Posts: 4,231

One more thought...

For guitars with single rod truss rods in a wooden channel (Fender, Gibson, Taylor, PRS, but not most imported guitars or Martins) I like to adjust the truss rod during the summer at highest humidity. At worst in the winter the action is a little higher (for an acoustic maybe offset by the top flattening) but for sure you won't back bow in the summer.

Back bow can be more troublesome than buzzing notes. For guitars where the truss rod channel is curved, the wood is a relatively less stiff species, and the neck long and thin, the neck can twist. A classic case would be a Gibson SG.
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