.... the shoe fits properly all around (I could not go a even 1/2 size smaller), and the laces are tied tight. Is this simply because a brand new pair of shoes tends to be stiff, and just needs breaking in? After that, I'd expect the shoe to ply more easily, and maybe not try to remain so straight/rigid. (which could be what's happening when the shoe isn't immediately following my heel?) Anyone have experience with this?