That’s good news. Glad to hear it. By the way, you can ignore my concern about getting to a 1/2 turn with nothing happening. It sounds like it is acting like a normal truss rod now.
My neighbor broke her hand, so she isn’t going to be playing guitar for a bit. While she is out of commission, I am going to do a setup and cleaning on her guitar. It’s pretty interesting in that it’s a relatively inexpensive Yamaha but it seems to have pretty nice potential. I’ll be interested to see what we can do with it. Here’s my notes from measuring (I haven’t changed anything yet):
Before:
Low E 12th fret: 7.5 / 64
High E 12th fret: 5.5 / 64
Relief: Very little. Less than .002” 5th through 9th
Low E height over first fret in excess of .035”
Height over low E first fret when fretted at 3: .010”
High E height over first fret .020”
Height over high E first fret when fretted at 3: .006”
Height of saddle over bridge between D and G 9/64”, 10/64 at low E
Intonation good. Slightly sharp on low E, A, B: slightly flat on D, G
Slight fret buzz on lower frets, especially B and high E
Minor fret wear on B and E around 2rd and 3rd frets.
Neck angle good: finger board extension hits just below top of bridge (1/32”?)
Strings are old and dead.
General impression: a decent playing and sounding guitar. Action is generally a little stiff, the sound is surprisingly loud, but not real clear (not much definition when playing chords) and a bit boxy.