I'm rerigging my cat from Bravos to #5's on 10" extension boxes, what would be a good propshaft hight to start with? The boxes have two sets of mounting holes 1.5" apart so i have some adjustment.

The boat is a Mystic 32' twin with blower motors 700 hp, two step bottom with a 12" notch, & i would like to run 4 blades.

Anyone, anyone...

I have heard 2"-2.5" above the bottom.

My 32 skater with #5 is 2 3/4 with merc 5 blades

32-DD any idea what kind of slip numbers you have?

Nice boat also!

according to Mercurys prop slip cal. 6-7% but my props have been worked 3 times by brett at BBlades