Quote Originally Posted by Euclid440 View Post
If you lift the spine before the razor stops, just once you will roll the edge.
That is simply not true. At least not in a general sense. Now if you were to exert a lot of pressure on the strop while doing that, or if you lift the spine to a 45-degree angle or something, then yes a rolled edge could result. But lifting the spine a tiny bit during normal stropping is not harmful, and could actually aid in straightening out the edge.