Cal,
Yes, I'm using the PA hold. When the t-brake is released, it starts the counter.
With that being said, when using manifold pressure as a reference, the boost DC% starts at 100%. Even if I target 20% boost control because there is no pressure sensed on the transducer. When Boost starts to build, it will try and reach the target WG pressure at "0" seconds. In my case, WG DC is still moving around in this area since I'm trying to leave hard and boost builds slowly. After launch, it hits an area where the boost builds quikly and may overshoot. Using boost as a reference signal can be tricky and force the controls to react differently than having constant CO2
Of course, having instant CO2 would help.
Min Map KPA and TPS boost settings are not applicable on PA Boost control but using PA enable RPM seems work in a similar way to Min Map.
Allan G.