I have a hydro troll on a 16.5ft bomber with a 90 hp Force. without it 3mph was as slow as I could get. With it I can get to .8 by GPS. get some extra shear pins, some time they do not lock in at high speed,and it will shear them!
The book says easy to replace on the water, but you better have some long arms!
I cant tell lots of differance on top end.but it does not back up to good with the plate down.
Rowdy