Today I started training this element with 3x5 and 2x3 reps. The 1st video shows one of the longer sets. To me it looks ok but after the 1st rep I developed a bit of lean and because of it I couldn't pull my chest to my hands/the bar anymore. I had the same issue when I stared with the chin-up version though I still managed to pull to the bar. The 2nd vid shows my target form going forward.