I'm not polish, so don't read on if you don't want to
I can't tell from the video. If the bag is at your ankle the whole time, it's clean. if the bag goes near the bottom of your foot or past your foot, it's not clean.
i c its like i do 1,5 dexes and then concentrate on the catch insead of completing. but matt i cant stall the bag near ankle cuz it rolls down (poor crank). whatever better a the ripstein than no ripstein!!