I have been a long-time member of Tradgang and am now happy to say I am also a Sponsor. I have recently been offering my string tracking device (I call it the Trad Tracker) for sale both online and through 3 Rivers Archery. I have used it for years successfully on deer, hogs, and one Canadian black bear. It is unique and, in my opinion, solves many of the issues hunters have had with the string tracking devices that have been available.
It weighs less than an ounce and a half, attaches to the bow with either a simple bungee system or a removable dual loc fastener material (similar to but stronger than Velcro), is quiet, and has no discernible effect on arrow flight. The lightweight thread is remarkably strong. It will sometimes break but even then, often gets you well in to a blood trail. Every one is hand made in Montgomery County, Alabama.
I was recently fortunate that Jason Samkowiak tested it and published an excellent YouTube review on his Traditional Bowhunting and Wilderness page. Rather than describe how it works here I would suggest looking at his video. Even if you don't like the Tracker Jason's videos are always informative and entertaining.
My website is
www.tradtrackr.com . The Trad Tracker and extra thread are available on my website and may be ordered through 3 Rivers Archery.
I can honestly say that in over 20 years I have not one time said, “I wish that I did not have this attached”. There have however been occasions where I regretted not having it attached!