I ran a list tonight, 2000 points, with 7 tanks. Look here for the breakdown:
http://www.dakkadakka.com/dakkaforum/posts/list/419508.page
It was amazing to see my troops go unnoticed for the entire game, until the last turn, when, my opponent realized it was an objective game. Your troops go unnoticed with all that heavy armour rolling around.
I almost always move my tanks six inches, just to keep assaulting them harder. Alot of outflank armies here in my area.