150 hp vs 200 hp?

[Para]

Fermanator: You raise an interesting point.

I sued to use a 19P prop for water skiing, etc It was pretty good. If I wanted to haul Arse I put a 21P on it.....but it was not very useful for much else. It even made it so I trolled a bit too fast

All things the same, lets say for a 19P prop I either switched to: 1) Stainless, or 2) Switched to a 4 blade version of a 19P in aluminum or, i suppose 3) a stainless 4 blade

How much of a difference do you think I would see. Particularly in the ability to rip a skiier out of the water.