Did a little work on it tonight, and almost have it dialed in. Neck needed less relief to get near straight (Chicago winters), minor saddle tweaks. However, I just can't quite get the 6th (C) string in tune at the 12th fret. I've moved the saddle pretty much as far back as it goes and we're still sharp. I keep it in the stock Drop C, with 10-52s. Any thoughts?