Great question. Typically, more slack means more room. A difference between the two choreography options is the position of the hips to the foot in the belay before wrapping the footlock on the free leg. Being under the foot in the ankle hang makes a more vertical shape. Being on top of the foot in the belay gives your a more horizontal option. If you are trying a mix and match, exploring what shapes feel accessible to your body in the horizontal space might be a good place to start. These shapes might also be accessible in the vertical space, it’s translating the body position while inverted. For example, you may have room for some split shapes from the ankle hang if the hands start lower before turning over. Happy training!