1. Mamiriro enhengo anoda kuiswa kwemuviri (semuenzaniso, kuderedza marwadzo, kukurudzira kurongeka kwemuviri, kudzivirira zvibvumirano, kana kudzivirira zvirwere zvekufema) nenzira dzisingagoneke mumubhedha wakajairika;kana
2.Mamiriro enhengo inoda zvakanamatidzwa (semuenzaniso, midziyo yekukwevera) inogona kusungirirwa pamubhedha wechipatara haigone kugadziriswa uye kushandiswa pamubhedha wakajairika;kana
3.Nhengo inoda kuti musoro wemubhedha uwedzere kudarika 30 degrees nguva yakawanda nekuda kwekusagadzikana kwemoyo, chirwere chisingaperi chemapapu, kana matambudziko ane chido.Mapillow kana wedges anofanira kunge akatariswa.