Strange, I thought all that had already been cussed and discussed for years and years. Would expect that a search would turn up plenty, tho you might need to use Google or DuckDuckGo (my new default search engine) to search at
www.stunthanger.com. There should be some evidence easily found in the 1/2a forum. I hope this helps, but I'm pretty tuckered and not up to do the searching...plus dinner is about ready!
FWIW, I bought some to try for a .25 powered Tomahawk II. I think it's 40 lb test, and the color is Vermillion or Crimson...(red!). You can also get a nice blue, but either should show up better on grass than yellow or dark green. White is also available.
Steve