It's a dual jet drive. The RPM is limited to about 8,000. During a launch, even if you are empty, you need 6-7k to get on plane, then you pull back to maintain speed. With the ballast being used and 2 big guys on the back, the boat was max'd out for the jet drive. I was at max RPM to get it over 10 mph. Having both guys on the back didn't really help the wake, but it was too much extra weight to get to speed.
Yes the engines are the HO, but they are the larger displacement (1812cc each) than those in previous years. The fit and finish is excellent, especially in areas you don't normally see it, like in hatches, engine compartments, etc. There is no no-gelled fibreglass in the boat where you can reach, even under the engines! There are water channels all over the boat to keep water from running under seat cushions into storage.
All I can say is I was impressed with the boat.
I will say that my Epic still has way more available power for ballast for both wakeboarding and surfing. The Epic still generates a better wave and wake, but depending on what you do, the Yamaha is a very good and fast all-around boat.