from what I can understand lots of problems with the standard ecu and solenoid not coping with 1.2-1.3bar ie boost needle flapping about and usually when the tune state is (bluefin, manifold,decat,exhaust etc) fit external boost control or bleedvalve and its fixed !

could we need a stronger actuator at this state of tune

could it be the base map again I got mine switched back to the origional AE map to solve the AF cough 5k missfire (by the guy who actually wrote AF with prodrive\ford ) and he said AF held more agressive boost at the top end !

without knowing exactly what bluefin changes and with limited knowledge I can only speculate I think peeps with chips ie collins etc have also had the issue but then do they still use base map values aswell ?