imashini ikata icyayini ugukora ibiti byicyayi kumera cyane. Igiti cyicyayi gifite ikiranga, aricyo bita "top advantage". Iyo hari icyayi cyicyayi hejuru yishami ryicyayi, intungamubiri ziri mugiti cyicyayi zijyanwa cyane hejuru, ubanza kwemeza imikurire niterambere ryikimera cyo hejuru, kandi mugihe kimwe, imikurire yuruhande. ni Birabujijwe. Nkigisubizo, muri rusange umubare wicyayi wibiti byicyayi uragabanuka kandi umusaruro ntabwo ari mwinshi. Kugirango uhoshe ubwiganze bwibiti byicyayi, abahinzi bicyayi bakunze gutema, bakoreshejeicyayiguca inama zo hejuru no gutera imbaraga zo gukura kumashami kumashami. Mubisanzwe, gukata bitatu cyangwa bine bisabwa kuva murwego rwo gutera kugeza kurwego rwabantu bakuru kugirango biteze imbere ishami ryicyayi. Igiti cyicyayi kimaze kwinjira mugihe cyo gutoranya kumugaragaro, kigomba gutemwa byoroheje buri mwaka cyangwa undi mwaka, ni ukuvuga santimetero 2 kugeza kuri 3 z'amashami n'amababi ku ikamba ry'igiti baraciwe, kandi igiti cy'icyayi baracibwa. igorofa yo gukora arc cyangwa gutoragura hejuru. Ibi bizafasha ibiti byicyayi kumera cyane kandi kimwe, hamwe numusaruro mwinshi kandi mwiza, bigatuma byoroha gusarura intoki nimashini.

Nyuma yimyaka yo gutoragura, igiti cyicyayi gifite urwego rwamashami meza hejuru yikamba, akenshi bikora "amashami yinkoko yinkoko" bifite ubushobozi bwo kumera. Muri iki gihe, urashobora gukoresha aicyayigutema cm 3 kugeza kuri 5 z'amashami meza n'amababi hejuru yikamba. Muri ubu buryo, mugihe icyiciro gikurikiraho cy'imishitsi mishya kimera, bazashobora gukura ibinure n'amababi.