After 2 months of trying to dial in the fast boost control, I finally have some good results to post up. This is on a stage II car that I have been working daily with the owner to get the control in line. We have tried the map boost method and please do not waste your time with this mode of operation. Only the waste gate method is the way to go, using a 0-100 psi sensor. If you do plan to use this method I would prefer a 0-50 psi sensor.We still have some issues with spike at lower boost targets, but the 42mm gate on a stage 2 headed motor is too small in my opinion, so we have ramped up the boost /vs tps slower to compensate The settings used are in the zip file name.