Whats the typical slip numbers for a top gun t/s with ITS boxes and -2 lowers?
mines 21-22% with 4 blade b-1 props

I think 15-18 is about average.

There is no average.

Where are the prop shaft centerlines in accordance to the boat bottom directly in front of the drives?
Do you have any trim reaction?

Brett

3 1/8 below bottom

Are you running 30's or 32's. 32's on mine slip like crazy especially in rough water. 5 blade Maximus's hook up way better but your going to lose a little on the top and be harder on the drives

I've ran both 30 s and 32's.