Poyerekeza ndi woyenga, mphero za mpira zakhala zikuyenda bwino ndi ubwino wogwiritsira ntchito mphamvu zochepa, zokolola zambiri, phokoso lochepa, zitsulo zotsika kwambiri, zosavuta kuyeretsa, kugwira ntchito limodzi, ndi zina zotero. Mwa njira iyi, yafupikitsa nthawi 8-10 nthawi ya mphero ndikusunga nthawi 4-6 zogwiritsa ntchito mphamvu.Ndi ukadaulo wotsogola wapamwamba komanso Chalk zotumizidwa kunja ndi kulongedza koyambirira, magwiridwe antchito a zida ndi mtundu wazinthu ndizotsimikizika.