Congrats on the new ride. I have an 08 and love the wake. I've installed the following:
In the rear lockers:
Fly High X2 Rear sacs-455lb's each
Under Bow Seats:
Fly High Side Sacs-250lb each
I also have around 300 lbs of lead in the bow with another 200 or so in the rear. The wakeboard wake is great. Total wakeboard weight is right around 2800#'s.
For surfing I fill the rear hard tank and sac, kgb, plus add another 450 on the side seat of your choice. Both sides are clean and long. I haven't went much more because I haven't needed to. I have the attitude adjustment plate but never use it when riding. I do use it to get on plane quicker when loaded.