In the last year I have replaced both of my stern drive boats. The two previous ones had Mercruiser Alpha drives. The two new (to me anyway) ones have Mercruiser Bravo III drives with their counter rotating "duo" props.
My findings:
Time to plane is much quicker. For me this makes the two prop syatem worth the cost. Being able to plane the boat nearly instantly means less bow rise and less time making a big wallowing wake.
Top speed? I don't know because that's not how I like to run my boats.
Backing down into a slip is "different". After years of experience with the Alpha drives my technique relied on either using or countering the wheel effect. The Bravo drives don't seem to have any of this.
|