Tony you are correct as I did follow the instructions and ended up with one aileron a lot thicker than the other and I thought it was a mistake I'd made myself, so I ended up with a lot more work thining them both down.
Graham you too are correct as I checked this out with my friends kit parts against my glued wings and they are slightly over scale in thickness, but by following Airfix's instructions, I had to do a lot more work on one aileron, than the other, but nothing that wasn't sorted with some elbow grease and a little sweat
Now I can go rob a bank as I have no fringer prints left
Thank you for your input guys
Norman