I never noticed before but I was honing on a combination paddle hone/strop combination as I wanted to check how fine the grit was(I think it is finer than i was told) and i made a suspect pass that finished with the weight of the blade on the edgs of the hone. The corners are not rounded much and the light was reflecting just right so i saw that this caused the edge, and a considerable amount of the blade to flex a fair bit. I was using no pressure at all and it still has such an effect on it. Just makes you realise how delicate these razors are!
Nick