Ok, what is the point of collars on sticks? I assume it's to hide a bad fit between an antler and the top of the stick? I've seen a few sticks that had a white piece in between the antler and the top of the stick, what material is this? Only made 1 very basic stick so far just a hazel stick with a thumb groove, brass ferrule and finished with a boiled linseed and beeswax mix, so I'm not to clued up yet.