When I go north I generally travel in the left lane. Going faster than the right. But at a certain point the right is clear so I move over. But when people won't allow me to maintain my speed I play Nascar with them. Till they move or I can pass on the right. I always cut them off when going back into the left lane. If someone is traveling at the same rate as I, I leave the customary space. I don't need to be first just to go fast.