I am building a copy of my first classical guitar, a 1960's Goya G1, which has a 630 mm scale length. I seem to recall reading an article, probably in the GAL publication, about using existing fretting templates to generate new scale lengths, but I'll be darned if I can locate it now. Can anyone point me in the right direction? I am currently using a Stew-Mac template with 650 and 660mm scale lengths on it. I know I could calculate the fret distances using the formula found in Cumpiano/Natelson, among others, but my eyesight isn't what it used to be and I think I'd get better results using a CNC'd template if possible. Thanks for any help.