i dont like apc. 2 years ago they had a shootout there and i went along to watch. man they didnt handle the cars well at all. no calibration and checking the car was all ok. it was a case of car on, rev rev rev, car off. it was like a production line!
go there and watch how they do it, then go to a mercury motorsport dyno day. you'll notice a big difference. apc takes 5 minutes to dyno a car, mercury takes atleast 20. damn mercury should pay me advertising fees!