I don't have the factory ballast in front but I do use 350 lbs of lead that is concentrated very far forward compared to the stock 5000 lbs of water.
The picture is with stock port ballast full (1,000lbs), 7500 lbs in the rear locker (fly high sac) and three people in the boat.
I have since added a 3000 lbs sack underneath the port cabin seats. That weight helps lengthen the pocket a bit and makes staying in the wake, when driving a straight line especially, "effortless."