It rained here today so I figure I'd get some work done on my templates w/ a coping saw. I had intended to cut the neck pocket part of the template that way anyway, figuring I'd get greater accuracy w/ that than I did w/ the jigsaw. Turns out I was buck nuts. Behold! the inaccuracy of my coping saw cut:
I drilled holes of the same radius as the corners of a telecaster neck pocket so that I could get those pretty exact. I also needed them so I could turn the saw. The cut ended up pretty rough to say the least. Still, it only took an hour or so w/ a file to get it just about perfect. I continually used the butt of the neck to check its size. You can see here when it's pretty close:
It took quite a while but I'm pretty confident everything is correctly shaped. Once I was done, I clamped the templates together and, using the file again, shaped the template for the overall shape of the guitar to match the neck perfectly. It's at the point where it's not quite force fit but in there good and snug, which I understand is what you want. It's tight enough that the neck will stay in there w/ no support (not that I would want to set a pint of beer on it or anything):
The file was really awesome to work w/. In hindsight, it would have been the right tool for shaping the MDF rather than the power sanders I used. It worked both faster and more accurately. I used it a bit more on the template to iron out some of the asymmetries and have a feeling it will see heavy use fine tuning the actual body as well once I get it routed.