Fill only the rear tank on the side you plan on riding on. Place a sack above the tank and fill as much as you can. Lay a 5-700 bag either on the port bench going lengthwise down the gunnel or behind the drivers seat, sort of halfway on the rear bench. Get everyone as far back into a corner as possible or on the sundeck, and the wake is huge. At 10-flat we get a hard packed, super clean, waist high on me (6'3) wave that is ridable from 3' to 12' (measured using rope) behind the boat without wash. Staying in the pocket becomes less an issue than getting pushed into the boat.
Super Airs are very easy to get a great wakesurf out of, just takes some weighting down like any other boat.