Well, I have the commercial version up and running and would like to go SD over the weekend. Virtually all the online advice I've been able to collect refers to the older, copy the high to low spark table method. I could certainly use some advice from the more experienced members here, as I'm new to tuning and plan to move slowly and carefully. I do not yet have widebands installed, so BEN tuning will have to wait. I plan to completely remove the MAF, as IAT is a separate unit on my car. Thanks in advance.