I'll share my mistakes and near misses too! For example, while both necks are same scale and number of frets, the PDF neck has a small overhang. So relative to the pocket, the frets are about 1/8 inch closer to the bridge than the Nitefly neck. So the pocket has to be extended accordingly.....i made...

The body cavity required removal of ~1/8 material to seat the neck and get the fingerboard height and angle correct. I used a variety of hand tools--removing about 0.010 in at a time and checking the fit with sharpie on pocket and sandpaper on the neck to identify high points. Donor neck came from a...

Here we go

I don't see the photos yet. I'll troubleshoot and try and get them posted.

All true but it can be done. Here's the prototype Nitefly neck on PDF70 body. I have matched the Nitefly neck bolt pattern to the PDF body. This is at the first mating stage, bolts need to be shortened, holes counterbored and PDF mounting holes plugged. I will add a layer of carbon to the pocket and...

An increnental approach might work. Any method used to reduce section width in active areas of the spring should be performed with minimal heat to avoid affecting the temper of the spring. The method of scaling width to reduce spring rate might open up a path to perhaps manufacture of a single sprin...

The use of a plate spring opens up modifications that are not possible with other spring geometries. Given that there are 0.010 and up springs still in circulation, couldn't they be modified in the following manner : Nominal spring width =x Donor higher rate spring =y Using an available 0.010 spring...