I am no expert what so ever on archery or hunting with bows… That being said I did a little research and learned that you can have a steadier aim and hold the bow drawn longer than most people who do not use a thumb ring.
I could pull 74 lbs. at a 31 inches draw and still hold it longer than most people can hold their breath (I’m 60-years-old). Now, my sons, wife and hunting buddy all shoot with a thumb ring. The draw back is that the thumb ring needs to be fitted to each user because everyone’s thumb is a different size. It takes about a week to get used to this type of release.
Check out how to make one and learn more about a thumb ring ………..