So, when you get into building your own strings and your own cables...you will find that there IS a range for a single twist should be no shorter than....and there is a RANGE for a single twist should be no longer than. So, a single twist about 1.5-inches long, is average. You COULD make a string or a cable, with a lower twist count, so a single twist is as LONG as 2-inches. Sometimes, a particular string material gives better results (stability) if you use more twists, to get a shorter single twist length, like as short as 1-inch. Since your bow is now tuned to your liking, now you COULD put each end loop around a 1/4-inch diameter bolt, and stretch at 100 lbs of tension, and measure the outside measurement from bolt to bolt, and write down the measurement. Then, you would find a custom string maker you like, and specify the length for each cable, and the length for the bowstring. Draw board and some chain links are an easy way to measure a string or a cable.
That is the length of ONE twist of the RED paracord.
Draw board boat winch, I use to measure a bowstring or a cable.
100 lbs of tension.
I use two chain links, a chain link inside each end loop.
MEasure from metal post to metal post, if you have a stretcher for bowstrings and cables. Otherwise, while the string or cable is under 100# of tension, measure from metal surface to metal surface of the chain link. Do not measure from end loop to end loop.