Imisumari myinshi ya karubone ifite kurwanya gusaza, kurwanya ihindagurika ryubushyuhe butunguranye, kurwanya ruswa, ubukonje nubushyuhe, ubushobozi bwo gutwara cyane, umuvuduko mwinshi, ibintu byiza; ntabwo byoroshye guhinduka nyuma yo gupakira, kutagira ubushuhe, kugabanya ibinyeganyega, kwinjiza urusaku no kubika neza. Byoroshye gushiraho, inyundo irashobora gukorwa, nta bikoresho byihariye byo kwishyiriraho bikenewe.
Ibyuma bya karubone byatoranijwe bizimya kandi birakomeye, byiza kandi birwanya ingese, hamwe nuburemere bukomeye hamwe nubukomere bwiza.
Gukomera kwinshi nimbaraga zikomeye zo kwambara no kurinda amarira.
Imiterere ya convex yumubiri wimisumari kugirango itere hejuru, imbaraga nke n'umuvuduko mwinshi.
Gukomera kugirango winjire neza kandi udahinduka.