I destroyed a lot of guitars trying to get them to do what I wanted, but I learned something from every guitar I tore apart, and discovered even more things. Things like if the string is not straight from the bridge saddle to the nut, you're going to have friction.
You have to keep in mind that we don't run Windows, we don't have disks, we don't do Internet.
The great thing about using the past is that it gives you the most colossal freedom to invent. The research is necessary, of course, but no one writes a novel to dramatically illustrate what everybody already knows.