I just did a bit of a revision on this, and I realized that the old rev was lost with the forum changover, so here it is again in case anyone wants it. For those who haven't seen it before, it is an aid to lay out string spacing, and to graphically show the differences between the two methods. Requires MS Excel or equivalent. While I'm at it, how about a pseudo-poll: Hey luthiers and builders, do you use equal center spacing, or equal gaps between strings, at the nut and at the bridge? Do post!