I don't even know why, but I didn't measure the line out from the rear when I went by the shop tonight. When posting earlier I just referenced the measurements Sheldon gives, but there has to be something off. According to the TruVativ literature, the chainline is 41mm (from the cranks up front), and according to the measurements online, I should have 40.55/41.25 rear - but either way the line is clearly off more than that...

Tomorrow, I'll get some actual decent measurements and pin-point where the calculation errors are occuring. Whether it be TruVativ, or Sheldon's database.