This is the bit I dont understand. With the AVC off I get approx 10psi boost max. With it on I set the Target Boost Pressure to 1.35kg/cm2 which should give approc 19-20 psi. What I ended up with was more like 25-30 peak boost but it dropped back quickly. I ended up with the Target Boost Pressure set to about 0.35 with a Duty Cycle about 60%.

Is the target boost pressure not supposed to be the figure you are after?