Hmm. According to the instructions you adjust the whole Maf table to get ltft between -5 and +5. Then you adjust the 7000htz and higher for wot runs. Once that's done you scale the lower end of the table do there aren't many spikes. It seems like I was wasting time trying to get good trims only to change the whole table again. I hope I'm explaining this right. Do you understand what I mean?