If you use EFILive scan and tune to edit the Option txt file. You can only add what is allocated per controller. 42 for the ECM and 42 for the TCM for the LBZ and Alli. I have 37 of 42 for the ECM and 13 of 42 for the TCM well within the max. I also see these problems with LS1, LB7 and LBZ controllers. Using AutoCal and FlashScan.