I'm not advocating that you withhold discipline from your children -- not at all. All I am saying is beware of falling into the age-old trap of believing that the law can do in the hearts of your children what only grace can accomplish. I've fallen in the trap myself; not just in parenting but in my own walk. Obedience can either be a sign of mere behavior modification, or a sign of total heart transformation; and only a heavy, continuous dose of grace can ever bring about the latter. The law focuses on winning a battle, grace focuses on winning a soul.
Being a controlling parent is usually a self-fulfilling prophecy. You think that your kids are sneaky, manipulative, and disobedient, and maybe they are -- but that's probably the effect of your control rather than the cause.