Airboy is a good tool because if you use the same stretch of road every time, you get apples to apple numbers for your car.
Syno, if you want to be 100% sure the logs you have are clean, do two pulls and I'll have the program average them for you. Do them on the same road but in opposite directions, that will take away any affects of slight grade changes have on the log. Slightly downhill will give you a bit mroe power, uphill the opposite, but once they're averaged in the program you have a pretty dead nuts number to use.
Who cares how it compares to other dyno's, it's a tuning tool to see how you're improving your car without having to pay $90 for three pulls on the local dyno.
I also haven't been on in a few days, I'm getting to those logs you sent me now.