Well, one of the things, when I play guitar, I just tune it equal temperament, usually. So it is equally out of tune in all keys and all chords, lol. Problem is, if I adjust one string for the note being sharp or flat, it messes with the others. I don't play just barre chords or open chords, so it really puts a mess on some of the others. The guitar is inherently out of tune. On Steel, I just use the Peterson E9 setting. It is based on some accepted steel practices. Like the E, you have to tune it a bit sharp because when you engage the A and B pedal, cabinet drop makes it go flat. But the nice thing with a steel, you kick on the lever = the one to raise the E to F - you can tune that separately. But then, you are going to use that with A, and no raise on B pedals (well, you can also throw the B in, too), so you have to deal with that as well. Also, the pedal steel does not have a way to adjust the length or the string, all are set the same, unlike the bridge on a guitar. And you play steel a LOT more above the 12th fret than guitar (AKA Hugheyland), which makes that even worse. Steel guys talk about tuning like guitar guys talk about pedals. Constantly, in great detail, and with strong opinion.