I was more interested in the boost control side of things as I see people often that want to go aftermarket controllers and there is very little I can see that they do extra when compared to the factory controller, I understand if the boost level vs gear worked but I have not spoken to someone that has that feature working. We've done progressive boost vs engine rpm on several cars in the past, it makes them very tractable, but many people just want the boost to hit hard, no matter how much it slows them down