Thumb Rings - Exploring differences between a brass ring, Korean Amgakji and Korean Sutgakji

In this video I am trying to compare 3 thumb rings. An AliExpress Brass budget thumb ring, a Daylite Archery Korean Amgakji horn thumb ring and a Koreanarchery.com horn sutgakji Korean Male thumb ring. I compare the rings, short my Daylite Majesty with them and have some slo-mo shots of the release. Do they make a difference to shooting? I think perhaps a good fitting ring does. Note: This video was unscripted with no intended end result or conclusion. I am journaling my archery journey and discoveries along the way.