mjannusch - nice site and write-up.
I have way less in my AEM than I did with all my piggybacks.........and now have infinitely more tuning options.
I also have a GM boost control solenoid if anyone's interested in purchasing it. I'm not using it. Using my GReddy E-01 instead, personal decision.
Coal - boost comp is the way to go.
My car, with 1,000cc injectors and race cams, idles at 950rpms at 14.7:1 AFR all thanks to the AEM ems.
....and Renner and IPSJeff.
Jeremy