I am no beginner when it comes to instinctive shooting. I have been doing it since 1994 and have always been a better than average shot, especially on animals. I don't know what I started doing wrong but last year I started shooting to the left consistently. One group may be an inch or two left, the next will be six to eight inches left and they will be good tight groups with perfect elevation. It is the strangest thing, it seems like I could simply hold my bow hand farther left but that does not fix the problem. I can purposely shoot way right by doing that but if I concentrate on hitting center and naturally hold and shoot, the arrow will go right back left. I NEVER shoot to the right (makes for a strange looking target, left side of the bullseye is tore up, right side of the bull is still like new). I have tried to grip the bow differently, doesn't help. I shoot all of my bows and will have the same problem with each bow. The bows are also of differing weights so it is not an over bowed situation either. It is the damnedest thing. Any suggestions would be appreciated.