5-6% byakuya nibisanzwe byakoreshwaga mugusukura urugo. Isukura neza hejuru, ikuraho ikizinga kandi isukura ahantu. Ariko rero, menya gukurikiza amabwiriza yabakozwe kandi ufate ingamba zikenewe z'umutekano mugihe ukoresheje blach. Ibi birimo guhumeka neza, kwambara uturindantoki two kurinda no kwambara, no kwirinda kuvanga byakuya nibindi bicuruzwa. Birasabwa kandi kumenya-kugenzura ahantu hatagaragara mbere yo gukoresha blach ku mwenda uwo ari wo wose woroshye cyangwa ufite amabara, kuko ibyo bishobora gutera ibara.