Why does this matter? Isn't the idea that we put the soap on our face and then shave? If you want to do some more shaving after removing the soap, why not just put some soap where you want to shave? After my last pass, I run my fingers along the neck areas that are sometimes problematic. If I find a spot I want to touch up, I touch the fingers of my left hand on the brush, rub some soap on the spot and shave with my right hand. I could pick up the brush and apply some soap, but this just seems quicker. I don't see why anyone would want to touch up without lathering the spot at all, counting on residual slickness. Even if it's pretty good, I've never found the residual slickness to be close to original slickness.