Anyone here use a different method for setting intonation besides the oft-cited "open string 12th harmonic" method? Specifically I'm referring to fretting the string octaves apart, e.g. 3rd/15th, 5th/17th, etc. I've read that some people do this to spread the error across the fretboard more evenly, as opposed to having a 12th fret perfectly intonated and the lower frets too sharp. I'm considering this because I'm not too happy with that lower fret sharpness, and I find that the vast majority of my lines are played at 7th fret and below. Comments?