Isicoci sodaka, esikwabizwa ngokuba ngumatshini wokwenza udaka kunye nokulahla, sisixhobo solawulo sesibini kunye nesenqanaba eliphezulu ukuze kusetyenzwe ulwelo lokugrumba, oludibanisa inkanyamba, isitshingitshane se-desilting kunye ne-underset screen njengesixhobo esinye esipheleleyo. Ngolwakhiwo olubambeneyo, ubungakanani obuncinci kunye nomsebenzi onamandla, lukhetho olufanelekileyo kwizixhobo zokulawula eziziisekondari nakwinqanaba eliphezulu.