Njengoko kukhankanyiwe ngasentla, iidrive zokuxheleka zidityaniswe kakhulu, zigcwele-indlela yokunciphisa isangqa esijikelezayo. Iinzuzo zabo zidlulela ngaphaya koku. Ngelixa amacandelo kunye nemithwalo eqhutywa zezona zinkulu kunye nezincinci zokuqhuba zinokwahluka ngamashumi amaxesha, imilinganiselo yazo, ngakumbi imilinganiselo ye-axial kaloliwe wokuqhuba, iyafana. Oku kuququzelela ukucandwa kwesakhiwo sokudibanisa amacandelo kwiinkqubo zothutho, ngaloo ndlela kuncitshiswe ubungakanani obupheleleyo besixhobo somatshini.
Ngaphaya koko, zombini iigiya kunye negiya yokubulala i-worm, ngenxa yomahluko obalulekileyo phakathi kwezinto eziqhutywayo kunye nezixhobo eziqhutywayo, zifikelela ngokulula kwireyishini ephezulu yothumelo, into engafikelelwa lula zezinye iintlobo ezininzi zothumelo lwesantya esiguquguqukayo.