Wave Management for Total Noob Okay I'm really confused now. 

Where do I want the wave to be as Vladimir so that I can prevent enemy roams and scale late? 

Do I want it slow pushing towards my tower... or towards the enemy tower? Where (and when) am I freezing? And how exactly would this prevent the enemy from roaming?  

And what is this "The Minion Wave Will Crash and Reset" thing that I keep hearing about? 

Mind = Blown