One more thought, as for now this software is for NB tuning. Most of my logs are from driving with WB O2, so the BLMs and INT values are of course useless. My thought is that it would be more universal to add a function to compare two values to calculate an error, e.g. Desired AFR - Measured AFR = Fueling error with adjustable factoring, and then to use that calculated trim value as BLM trim map adjustments. What do you think?