Best thing I’ve found is to take some good quality yarn and serve the ends of the strings with it. The yarn must me wool and not an artificial material like acrylic. It should also be as thick as you can find.

None….there is no need to add anything to the string or bow limb in this area of the bow. You need to look at other tuning items such as brace height, nocking point, string twist, string silencers, arrow spine & weight, last- is the limb twisted.

I have used the fuzzy side of Velcro kits available in fabric departments. They have adhesive on one side, are easily cut to shape and are relatively cheap. The same material serves well as a rug rest.

I used shoe goo to glue suede on the tips of my recurve. It is quiet without anything on the string. OK, at least I don’t hear anything.

I second the Velcro comment. Didn’t put much stock in it until I tried it and it did make a difference