I am by no means an athourity on the subject, but if the boot is split then it's the steady loss of grease that you need to worry about. Do you have a lot of grease around the CV area or are you having to clean it up every now and again? If so I would simply change the boot which comes with new grease and clips - mine did anyway. I didn't use the supplied clip for the half shaft end of the boot though I simply used a hose clamp which was a bit more user friendly.
The tape may hold for now but if it were me, I would not want to replace the boot in the bush.
Aye, Mick

