Is there a "right way"/"wrong way" to pry with it (other than hold onto the spine, not the blade). My intuition would be to use it beveled side up, but that's not how it's used in the video -- am I wrong?
I think it would probably depend on what you were prying. If it were a nail on a flat surface you would want the chisel side down to give you a little lift.....I think.
