I chased obnoxious noise on my first home brew recurve for the first three months after building it. I hung more crap off the limbs than a Christmas tree. And in all that time, I ignored peoples advice about nock fit. Actually, I didn't ignore direct advice, just comments found via the search function. One day I decided to try my hand at twisting a flemish string. So, I ordered the materials, built a jig from specs found on this site, and took a guess at strand count.
My first thought was, "oh crap, my nocks are way too loose.". But, I figured I might as well try shooting it. To my surprise, the bow was dead quiet.
Remembering the notations about nock fit I set out to determine if the difference was the superior quality of my first string, or nock fit. I loosened one nock substantially and tried it on my old string. Sure enough, dead quiet...
I have now removed all of the limb ornaments and it is still dead quiet. So, I would try a looser nock
Coming from compound shooting, this revalation was a BIG surprise to me.
Steve