Small update, I finished the passenger door in the same way. I didn't need to sand away so much of the wing this time so it was much easier. Probably helped as it was a known problem and solution the second time around.
Not much more to report as I have been busy on a custom cafe racer build for a customer, thats finished and i'm off for a month to Spain so not much will be started until August.
I expect the rest of to keep hard at it and think of me laying on my lil for the next month. Might not help you but it will make me feel a lot happier.