There are obviously many different approaches to cover and trying to fool them. I don't think putting out a big bet at the end of a shoe is the right way to go, even if you do continue with the big bet into the new shoe. You don't want them to see something strange and then review your play. At that point, they are at the very minimum going to be suspicious, even if you keep betting in a fresh shoe. Don't give them anything to look at!!! Bet big off the top so when/if they see you betting big again later, they don't care, because that's what you were betting when you started playing -- why should they care?