Malibu 247 surf wake - how to weight the boat?

My buddy purchased a 2007 Malibu 247.

There has been some pics on here of a surf wake that looked legendary (you remember the ones with the guy actually just sitting on the surfboard? I ran a search and could not find the thread. (as a side note, the search tool has failed me on most occasions)

Does anyone remember something that might have been unique on that thread that could narrow the search?

We surf on the port side. I went and put 400 plus the quad stock ballast all full, and the wake was mediocre at all wedge settings. Only 1 guy in the boat and not much weight.

How do you best dial in a 247 surf wake, and what wedge setting? I am going to Lake Powell with this guy in about 10 days, so I need to help get this dialed in.