No worries about me shakin' my head Peckerwood.
I think it's the generalizations I have a hard time with, in addition to experiences which directly contradict others' testimony. With recurves the biggest contributor to noise for me was limb slap. I had to go to 450+ to get rid of it on 2 bows. I agree D97 is excellent. I use old FF on selfbows and glass longbows because it's cheap and even if there is a little stretch, compared to lower stretch, it doesn't contribute to noise via limb slap.
The one absolute in all of this is, vibration and noise are the same thing. Low stretch strings vibrate less. It's as simple as that.
Now given the wide spectrum of our experiences, I have to conclude that other factors contribute to the equation and each of us perhaps fails to take into account all the things, and there are many as has been alluded to, which contribute to whether a particular setup is loud or quiet.
A question for those who've made the switch back to B50. Do you take into account the difference in string mass, and add that back to the arrow?
Because if you don't, is that a fair comparison?
For example, a 150 grain string and 500 grain arrow won't shoot as quiet from ANY bow as a 250 grain string and a 500 grain arrow. Just a thought. I'd rather run a 150 grain string and add 50 grains back to my arrow. Get more out of the bow, quiet it at the same time not to mention all the other advantages, less handshock, longevity, etc. that modern materials provide.
Also tuning for harmonics, what Chad was talking about by placing a small string mass (ie. "silencers") strategically to minimize harmonic vibration. Each setup will have a unique optimum setup. I've had to fiddle with a bow for weeks to find the best setup. But I eventually learned, there ain't no fixing limb slap no matter what you do.
Honestly, having written all of this, I can't find an application for B50 I like, with the exception of old 70s era glass bows which lack built-up nock overlays and string grooves. Even as a tillering string I find B50 lacking, as I require a string a good 1" to 2" shorter, forcing me to bend the bow farther than needed to brace it only to have have all that 2" stretch right back out before me eyes.