Izici:
Ukunemba okuphezulu: ngemuva kokwelashwa kokugaya okunembayo, ububanzi be-bore kanye nobukhulu obungaphezulu kulawulwa ngokuqinile ukuze kuqinisekiswe ubukhulu obunembe kakhulu nezici zejometri.
I-Smooth surface: ngemva kokwelashwa kokugaya, ingaphezulu le-bore libushelelezi, linciphisa ukungqubuzana nokuguga, okuzuzisa ukudluliswa koketshezi nokusebenza kwesistimu.
Izakhiwo Zemishini Ephakeme: Amashubhu ensimbi abhorekile phansi ngokuvamile anezakhiwo ezingcono zemishini nempilo yokukhathala ngenxa yokukhululeka kwengcindezi phakathi nenqubo yokugaya.
Okwenziwe ngokwezifiso kakhulu: izinketho ezenziwe ngokwezifiso ziyatholakala ngezinto ezihlukene, osayizi, ukunemba kobubanzi be-bore kanye nobukhulu obungaphezulu ngokuya ngezidingo zamakhasimende.
