HI folks, long time since i've been in the forum, but i've decided to do another build. I am by no means a professional luthier but do have experience (this is my 3rd build my third). I'm in the process of gathering material and wanted to cut slots on the finger brd by hand this time round. i'll be using a 2 piece black limba for the neck that will be a set in neck. with a rosewood finger brd. All i can get my hands on is a 1/64 increment ruler. My question is will this give me accurate enough measures for the slot spacing, or am i better off just getting a pre-cut brd. I plan to use a 24 3/4 inch scale.