RE: What Finishing order is best when building a Profile and Why?
Something I have done in the past is to cover the wing first. Before installing it cut your covering for the fuse leaving about 3/8" overlap into the hole where the wing fits. Install the wing and add any necessary filler to the gaps. You can then slide the fuse covering over the wing and on to the fuse with enough lip on the covering to cover the fillets.
Hope that makes sense.
Paul