Over the decades, time and again, I've had trouble intonating the sixth string. Even now, with my 2007 SG-3, this string shows a borderline sharp fretted 12th fret while the harmonic is right on, and the bridge saddle is all the way back toward the tailpiece. I tend to press too hard on the strings in the first place, pick hard with fingers or a hard pick, and worse, I almost always put some vibrato on the notes, too. I know I'm sharping notes a bit as I do this, so I always tune the strings on the edge of flat. The last thing I need is marginally sharp intonation. How do you all deal with this? Am I right to think I can edge around this by using a sixth string of heavier or lighter gauge? I have a 42 on there now.