yea, these things have a really rounded lip
3350 is really not that much weight in just water.. I think the wedge is another 1000lbs of downforce? so 4350 lbs if you choose to drop it down for a steeper lip.
Tige Z3 with the new Surf XL ballast is 3500lbs stock.
The Supra SC 350 at the last Polar Bear event ran 4000lbs of ballast....3400 lbs of water and 600lbs of lead, 60/40 back/front.
I'm sure I can find more examples, and you dont have to run the Sumo 900 bags in the rears, you can have the Sumo 600s as well.