I did a search, and the info I got hasn't helped. I have a fairly new Michael Kelly Dragonfly 4-string. I've noticed that the intonation is off. All 4 strings are slightly flat at 12 and above. so I'm thinking it's one the following fixes: 1) Adjust the truss rod (slowly, careuflly, and over a matter of a few days, not in an hour) to adjust the action. 2) Somehow shim the bridge to bring up the intonation. Alternatively, I could create a custom bridge designed to place each string at the ideal height. 3) New strings? I have the stock MK Phosphor Bronze strings. Any thoughts?