One of the other threads on here has a link showing how to hook up a grainger valve type setup with a switch to the stock solenoid. The purpose of the switch is to have two boost settings, a high and low one by activating the switch. It seems to me that the BstC would act the same way as the switch but allow a 7 pound range with the quick spool of the grainger style (RJC) valve. When I get a chance I'm going to try it and see what happens.
MLH