I've been told that a bow string with "less strands of fast flight material" shoots harder and quieter than a heavier (more strand material) string. Padded loops in both cases..... Is This True?
Like others have said, it depends. I saw a post recently where Ron LeClair's string maker adds some dacron to his 450+ strings and they are quieter. That's adding weight. Mike Treadaway has added dacron to his FF strings for years and years--he says it's the quietest string for his bows. The 450+ and FF are carrying the load--the dacron in those strings is just added weight.
There are lots of variables to consider other than just strand count. How it's made, what it's made from, type of bow, brace height, arrow weight, proper spine, your release, nock fit, silencer placement, etc. etc. etc.
I haven't had a bow I can't get hunting quiet without a tiny string. I haven't done much experimenting with tiny strings at all, because with them I loose the things that make me prefer HMPE materials to begin with. Those things are durability, lack of stretch, and lack of creep.
The only way to know if you will gain anything is to experiment, but be aware that "everything is a trade-off".
Chad