IME/O - being consistent and delivering the same thing every time is the single most important thing to me. Ergo, I use a time honored method, the KISS method. Keep It Simple Stupid.
If the customer asks for 55 pounds mains and crosses....I have this funny inclination to string the mains and crosses at 55 pounds...exactly. I don't use calculus to extrapolate out a harmonic average tension varying string by string. I also don't wear Mickey's Wizard hat when I string. I just pull the damn string.
I really wish people (not you) would quit trying to turn racquet stringing into some science, mystical cosmic event, or occult practice.
Volkl C10 Prince Warrior Hybrid Touch @48/45