I have a problem with the intonation on my Zon and my Cirrus. The screw that adjusts the string length is too short on Zon's G string and the Cirrus' G and C string. Anyone else ever had this problem? I'm going to go to the hardware superstore tomorrow to see if I can find some 1 3/8" #4 screws. Also, how do you compromise for good intonation between the 12th and 24th fret? Should I set the intonation perfect at 12 and live with a few cents flat at 24, or set 12 a hair sharp and have 24 a little closer to being perfect? Obviously, on a fretless, this isn't as much of an issue, but on my Cirrus if I set it perfect at the 12th fret, the notes are noticeably flatter as you go up from the 16th to the 24th fret. A few years ago, this wouldn't have been a problem for me, but I find myself playing up in the horn register a lot more these days, and fretless has improved my ear to the point that a note that is more than 3 or 4 cents off compared to the other instruments is like fingernails on a chalkboard.