One option that does not mind the dimples....
I cut a notch at the overlap on the inboard skin that is similar to the notch on the trailing edge side where the two join at the training edge. I cut this notch to about 1/4" before the first rivet holes.
The outer layer will nest down in the notch and be flat at the tank junction.
This creates a nice and tight sloping transition with absolutly no step off of the tank and a gradual transition up the ramp to the area were the two skins overlap.
I did this following the advice of my CFII and how he did his.
This took about 5 minutes to cut, file and smooth.
Looks great.
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