So what i meant by that was lets say your on a flat road cruising at a constant speed, say 40mph and you log 80 load with the MAF tune. When you do the same drive with the SD tune you would want it to also show you 80 load. If it says your at 110 load then you would want to adjust that down. You would want this to be as consistent as possible between the two tunes and across the whole range of loads and rpm's. It probably doesn't really have to be this way, but if you have variance then your going to be reworking your fuel map to compensate for it. This is how I understand it anyway.