I'm building a Gretsch style semi hollow-body electric and, like the Gretschs, the neck and fret board extend over the body and there is a gap between the underside of the neck extension and the top of the body, as shown in this picture.
Attachment:
s-l1600 (6).jpg
Does anyone know how you would go about applying the lacquer to the underside of the neck extension and the part of the body top that is under it? How does Gretsch do it? The only way I can think of doing it is to apply the finish to these surfaces before glueing the neck on then tough up around the glue joint. I faced a similar problem with the finishing of an F-5 Style mandolin. I got some lacquer onto the underside of the neck extension but it was very rough. Fortunately, that was a dark finish and was not particularly noticeable.
Any advice would be appreciated.