wern101 Yes a very late question - why are you doing this? Should this be done with every Kit?
Hi Werner..
basically to make sure my neck is correctly set with the truss rod.. should be checked with ANY guitar .
making sure you have straight and true neck.. I have found that with the kits, they are generally correctly set, but doesn't hurt to double check. you can Eyeball it if you look down the length of the neck.. but not the most accurate method.
I made a straight edge notched neck ruler for my Bass, and i Have a double sided one for the guitars(24.75" -25.5"scale length),