Video #1 - Nice approach pacing. Super jump! Video #2 - Great approach and Lean-in. SUPER vertical release! Maybe too much arch too early? Are you talking in the air? Video #3 - Maybe some turn-away of the shoulders at takeoff? Landing spot suggests you're flying along the crossbar and not passing directly over it. Early arch again... Video #4 - This is a HUGE jump height-wiase - you just broke it too soon! You will make 6'4" easily if you get this jump and your TIMING in sync!!!