If you can make it to the TN Classic, the IBO Trad Worlds, the Howard Hill, or the Jerry Pierce let me know and we can meet up and I'll show you.
There's a lot on the www about strings, but a lot of it is inaccurate and/or incomplete.
For instance, it seems a majority of flemish string boards go by bow length rather than string length. That is hit or miss at best. How to measure for an accurate finished string will vary depending on the material, strand count, how you twist, etc.
Like anything else you want to do well, accurate information is a "must".
Chad