That IS very helpful.
I'm looking into this type of system to help with tuning my AEM EMS, so pretty fair accuracy is a must. I'm getting tired of shelling out appx $300 every time I add new components and have to have the thing dynoed. I know it will never be able to take the place of a dyno run, but one of these combined with the datalogger should keep me from having to dyno quite so often.
Thanks for the input.