Setting up an 03 moomba for surfing

I recently got an 03 moomba mobius with the gravity II system I believe. Looking to start wakesurfing behind it soon and want to get started in the right direction.

First thing is the wake: I'm sure we will have to add some ballast in it to help, right now it has one in each locker and one in the center. I plan on trying some stuff with ice chests for now to see if I can get in the ballpark cause I'd really like to be able to avoid having sacs sitting on the boat in the open.

I'm sure I'll also need a shaper like the suck g8 but haven't found any build threads yet. If someone could provide a link that'd be awesome.

Also we have the Standard tower and I'd like to know what tower rack yall would suggest for surf racks

For surfing, more ballast is always better. You will want sacs to completely fill both rear lockers and the ski lockers, plus probably some bow ballast. There are suck gate build threads over on Malibu Crew.

Moomba forum has a ton of suck gate info

What does it mean to be "listed" I've seen it a lot in reference to the suck gate and ballast setups for surfing

Listed refers to weighting the boat to one side, the surf side, to create a better surf wave. With surf gates it is mostly unnecessary. Build one or check ours out. Www.swellwake.com