NGD-2018 D 40 Traditional Deluxe

chazmo said:

Outstanding, Richard. Get it to your expected normal humidity levels and see if it's still perfect/playable. The truss rod is only important if you need to actually make adjustments, as you know. If' it's perfect, then it doesn't matter! Good luck! Sounds like you got really lucky here.

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richardp69 said:

It sounds superb even though I'm pretty sure the seller put light gauge strings on it. Those will get swapped out soon enough.

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Not to rain on Richard's parade (Hey I'm happy for you too!) but just changing to mediums might be enough to want to adjust relief.
It'd tend to increase it ever so slightly with a side-effect of raising action ever so slightly as well. Probably less than 1/64".
Also Richard FYI those are shipped with EXP-16 .012-.053, so you may not want to swap 'em out after all, if that's what you meant by "lights".
Oxnard did go back to lights after NH had designed dreadnoughts and full-size jumbos for mediums:
https://guildguitars.com/g/d-40-traditional-in-natural/