What size cleaver?

[reacler]

I'm looking to get a cleaver for my new set up. I have a late 1980s 150hp yamaha powering a 16ft action marine. The set up will be with the prop shaft about 3/4" above the pad. What size prop should I be looking at with this set up?

[sleek150]

You need to post current prop specs, rpm, and mph to get an accurate response. But I'm guessing a 25 might work for top speed