Speaking as a nuclear submarine mechanic, a wastegate is nothing but a relief valve. Relief valves have two factors called blowdown and accumulation. They are not on/off transistor logic circuit type things. I don't know how to describe these without a very long post. Basically, there is a crack point, the set point, and the full open point. Accumulation is the difference in pressure between the crack point and the pressure which the valve maintains stable pressure (the boost setpoint). Adding an electronic boost controller, or a manual one that has a little ball check in it like I'm using, minimizes the accumulation by not sending pressure to the wastegate diaphragm until the setpoint is reached. By not cracking the valve open early, this improves boost response. This is what Hank is referring to. Sorry for the long post and I hope you are still awake.
"The first rule of overkill: You can never have too much overkill." "Overkill is underrated."
