I hope you are happy with your prop selection. But if you are looking for better hole shot in that rig than what you are getting from a 3 blade 24 pitch prop, why are you going with more pitch and 2 additional blades. That will most likely result in a reduction of 600 rpm. In a typical situation, that means reduced hole shot. The jack plate will enable you to make up for some of that, but the Hi Five is traditionally a ski prop for ski rigs. If you really want a 5 blade, 21 or 22 pitch may be the better application.
I want to stress, my opinion is not based on any personal experience with a Hi Five or any five blade prop. Only the operating theories behind props in general.
Good luck and please post your results.