Reason i ask is because karl had to add more preload than expected to get the car to hold the boost we wanted. And whilst mapping we noticed the boost level it was holding was getting progressivly worse and worse (going from 20-21 to 17-18. Karl pointed out this can be caused by a crappy material used on the wastegate arm but before i go changing anything just wanted to know if this can be caused by the actuator at all? (and i cant get hold of the o'mighty short one )

Cheers for the replys!
Dan