It's only through my vast experience that I can confidently say that matching string colour is one of the most important factors in terms of string performance.
After completing my 2nd degree (Physics), here is what I've come up with for the perfect combination of string colour for performance.
Now please, this is top secret, and I'm thinking of submitting my work for publication - so please don't share this with anyone else.
Ok, here it is!
Now, once you can emulate this combination, you too will have the best string performance!