These are not hip slips. Hip slips occur when hitters continue their forward momentum after foot down (lunging). Typically due to the lower body firing to late or losing instep pressure at foot down.Hip slip happens in every swing unless your attempting to turn the rear leg/hip relationship (no hip slip ) to power the swing while swinging around the ball. Using it (hip slip) as the source of power combined with forcing barrel turn is made up by someone whose never felt the high level pattern but attempted to duplicate through watching video and then convinced others he had a match.
More for the truth seekers...
Focus on the rear arm movement.. One is attempting to ttb while the other is throwing the barrel.