have any of you not been able to achieve the max boost # you wanted to get with a stock wg/solenoid set up, and switched to rjc and had higher boost? is the rjc controller adjustable within a specific range? (5 psi up/down or similiar)...have any left things the way they were set, installed controller and what happened? higher/lower/same boost? i know i hear everyone say spool is faster...