I have a question about the bark and hold. I looked everywhere in the rule book and no where does it state that the dog has to be centered on the helper while conducting the bark and hold. Granted, it is a "pretty picture" when the dog centers - whether standing or sitting but is it a requirement? The reason I ask is because my dog does not center - is more to the left or right when doing the bark and hold. I don't want to try and fix this if indeed it is not a requirement and ends up creating other problems.