I started to carry dressage whip (instead of very short crop) to reach hindquarters without moving my hand back (when I need a light tap). But somehow the dressage whip (which is really long) is all over the place + I can't get the hand position right (thumb on top, hand parallel with the rein). I'll ask my trainer next time I have lesson, but it'll be no early than in the end of the next week.