So far it's been easy to learn. After I connected the Labjack, I was able to identify which cells were operative at any given engine speed and load. That new information allowed me to be more precise in where I pulled timing and yet still achieve the improvements in drivability I was looking for. Earlier attempts at remapping w/o using a Labjack resulted in more drastic changes to more cells than was needed. Pulling too much timing in some zones could have a negative affected on both performance and mileage.