I just bought my third copy of the 18-200 VR from B&H. This is my first new copy as the other two were previously loved. I put it on the camera to test it and noticed that the focusing ring is a lot stiffer than the previous two, definitely creep-free at this point. Does this loosen up and develop creep over time? Just wondering if this is a Nikon fix or if the creeper will mature and rear his ugly head in the next few weeks.