My last pair of boots were half a size too big to begin with and after packing out only got worse. I didn't realize I was compensating for wrong size boots by pulling the laces too tight and ratcheting the binding straps to the point where it was pinching my ankles. My feet always got cold easily and certain parts of my foot were sore after a day of riding because I was basically strangling my foot. In spite of all that, I still got moderate heel lift which sucked.
Now I got some Thirtytwos that feel too tight when walking around the house in them, but strapped into my board they simply feel snug(the toes need to open up a hair still, but Im not worried), and I don't have to crank down on everything to get that secure/responsive feeling. And no heel lift!