I have tried to PM different ones, but have not received any answers yet[] I'll keep trying.
I have more than once experienced that the stated weight has been higher than the manual says.
I guess the main reason why this plane is extra heavy is my own fault. I have added behotec c 36 air retracts with pneumatic brakes, light system and bomb drop.[8D] the others I have seen in different threads has been about the right weight