Good post .Romney hasn't changed a single position on anything. He's addressed different audiences with different capabilities of understanding what he and Ryan say. Committed Obama voters perceive these different addresses as different, because they can understand the subtext of only their own rhetoric.
The Republican Platform is what defines the Romney/Ryan ticket. It has not changed. Romney hasn't changed it. Committed Obama voters must claim the opposite only to satisfy their own stagnant and utterly failed attempts at changing human behavior and imposing consistently failed Marxist economic principles. These committed Obama voters don't even listen to Ryan's excellent economics. They can't listen, because they would have to admit what utterly senseless failures almost all their perceptions of reality are. That's fine, because there are not enough mental hospitals to accommodate them if they did.