i would highly recommend you to use a hair rig... they aren't that hard to tie ... the only times i have lost fish was because of poor knot/weak hook/dull hook (angler error)
if you do use it on a hook though, i would say hide most of the hook inside the bollie and leave a small section of the point open ... that way the carp would somewhat hook itself and give you a chance to get a better hookset before it spits everything back out ... i might be wrong ...
i guess i am wrong after reading steve's response haha