I'm not sure how many people are like me but when I make a mistake it haunts me until it's fixed. Last night I was up a couple of hours thinking about the problem and how to fix it. Even though I lost a lot of sleep I actually did figure out a good way to fix things. Basically yesterday when I was cutting the sides of the neck I cut the bass side of the neck too far down past the point where the upper wing will connect, leaving an ugly cut and a gap between the wing and the neck. I sanded the cut to make it smooth, then carved a piece of cherry to fit against the neck. The challenge was that in order to cut it on the tablesaw I'd have put it in fret side down and where the fret board mounts is proud of the body. I put a piece of double stick tape on and stuck a board to the bottom that was flush with the other side, and ran it through the saw.
Here's the ugly patch and the pusher I stuck on top so I could guide it through the saw:
It came out great, no one will know about this except me (and you):
I carved the patch so it's the same shape as the wing:
It's not perfect yet, but it's close, I'll do more shaping:
I did a bunch of other stuff that won't seem significant in pictures including trimming down the fretboard, fixed a thickness problem on the neck blank and planed down the wings a bit, the drop wasn't enough and the bridge looked like it was going to be bottomed out. I'm going to add a thin laminate between the fretboard and the neck as well (I'll check things again before doing that). I need to round off the body again and I'll have to reshape the scroll on the top as well after the thickness work.
All in all a good couple of hours that will hopefully put my mind at ease - I'm traveling for work this week, so this is the end of progress until next weekend.