I have a 1999 Alumacraft Tournament Pro CS 175. Loaded package weight is about 1500-2000 pounds. I have a 2000 Mercury 9.9 4-stroke as a kicker. The kicker is not a big foot model. The current stock prop is 9" dia X 9" pitch. As it is now, to get my preferred troll speed of 1.5-1.8 mph the...