Actually mythbusters debunked a myth similar to this.
Round smooth golf ball didn't go as far as a dimpled golf ball. Dimpled ball was more aero dynamic.
To take it further they did the same thing to a car to test fuel mileage.
The car that looked like a golf ball via hundreds of pounds of clay and dimpled got better fuel mileage then the same car that was smooth.
I boat will go slower on smooth as glass water than a boat on the same water with chop.