Ngokuhambelana neemfuno ezizodwa kunye nemingcipheko yemimandla yeoli, ummandla osuka kumashumi amathathu ukuya kumashumi amahlanu eemitha ukujikeleza umthombo uthathwa njengobaluleke kakhulu.
Ukanti, ngokwenza, phantse zonke izixhobo zombane ezibekwe kwindawo yomthombo azinakudubula. Lo mgangatho unqanda iinkathazo ezingeyomfuneko ezinxulunyaniswa nokutshintsha izixhobo ezingahambelani neenkcukacha zobungqina bokudubula..