Build an Ashley MM
The engine was removed and I proceeded to pot the wing in the normal way.
The top of the wing was covered with plastic wrap.
The nylon screws were coated with Vaseline to help keep the epoxy from sticking to them.
A mix of finishing epoxy and micro balloons was used make the fillet.
I had to add some more mix from the sides into the wing saddle.
Make sure you clean up the fuselage. Alcohol on a paper towel works well.