Reviewed by Sam - 25th Jan, 2019 Trying to be clever With the rope outside the t bar there isn't enough friction for a descending climber, with the rope inside, there's too much. The whole point of a belay device for me is to be able to change the angle of the rope in your hand to control the speed of the descent. With this, it's either too fast, or too slow. Not very quick to give either... Disappointing.