4 or 5 blade prop?

[Deckerdawg]

I surf a 2006 X-30 with around 1500 to 1800 lbs distributed on surf side before passengers. I have been running a 4 blade 14.5 x 14.25 prop (not sure of brand). I need a new prop... Any opinions on the 5 blade prop for this set-up? Or should I just replace with the same one? Opinions?
Thanks