Interesting thread. When I receive a new steel string guitar, I play it for a little while (3 or 4 months) then take it to my luthier for a setup. I've had the same luthier for over 40 years, and he knows the way I like it. After that initial setup, I have never had to have another on any guitar. However, the longest I've ever kept a steel string is about a decade. In the Spring I turn the truss rod about a quarter turn to the left, then in the fall a quarter turn to the right. To the OP - just that initial setup, and that's it - but I'm very strict with myself about humidity and temperature.