Right now I have an AGP WGA (w/o BC) boosting to around 18psi and holding that to around 4k then slowly dropping to 14ish or so by redline. Now would a boost controller help me hold more @ redline WITHOUT spiking higher? I have had the WGA turned to bury the needle at one point and it held better boost at redline, but when it would spike to 20+ or so the car would sorta stutter and shake and it felt like it was pulling the same as it did at 18. I just want to be able to hold more boost @ redline without having a huge ass spike. I want to hold 16 at redline if that helps. I just want to know if it will give the results im looking for before I actually purchase one. Thanks for any help.