We've just ordered a new Fountain 38 Sport Fish Cruiser. Have recently seatrialed one with Mercruiser 496HO w/ Bravo III drives. It was a little sluggish out of the hole. Is this due to the counter rotating props? Originaly our new 38 was to come with Yanmar 315 deisels w/ Bravo III drives. The dealer stated that this package was not working for Fountain so they switched us to Cummins-Mercruiser QSB5.9-425HOs w/ Bravo III XR. Are these the right drives? We want to come out of the hole, get decent top end, & still be able to troll. Are there any comparisons that I can find on the net?