I don't see any con's. I think on the pro side that you need to practice like you play i.e. shoot does. I know several guys that won't shoot does because they are holding out for a big one. More often than not these guys wind up missing or making a bad shot when they finally do get a shot at a buck. I don't want to make the term practice sound trival BUT shooting does will help you be prepared to shoot a good buck if and when one comes along. Nothing you can do while practicing truely represents shooting a deer like actually shooting a deer does. IMO that's one of the biggest pro's for shooting does. Of course all of the pro's mentioned so far are valid reason's.