Shared this with a buddy today, when he came over to set up his bow, he never new this so might help a few here. On my bows, I put a red and brown rubber band or two. These are on the limbs. When I shoot an animal, I can adjust the rubber bands to the distance of the track or blood, then I can flip it end over end, and as long as animal stays constanst speed assist in finding next track or blood. I learned this in the Marine Corps for a tracking stick, have used it several times when blood was hard to find, and was a good tool,