Quote Originally Posted by mparker762 View Post
Sounds like a good way to slice a strop
One way to look at this is it's just the "professional stroke" with a hone that the barber's manual recommends to avoid a frown long term, but it's heel leading rather than edge leading so it's safer than the professional stroke. If you roll the edge up (as if you were going to flip it) and then lift, there is really no more than usual risk of slicing the strop.

I actually find doing the same stroke 10 times in a row keeps me more focused than flipping it back and forth, but as we've all learned, the odds of slicing the strop go down pretty quickly no matter what you do if (a) you pay attention and (b) develop some muscle memory.