I had the Prodij DSing in South Dakota on our recent Slopin' Safari and it hauls ass! I have noticed before that it handles like a larger plane and the same holds true in the DS circuit, especially with the ballast. It covers lots of ground and really retains energy well. I was getting 400-500 foot punchouts after building up the speed!
The Prodij flies a bit differently than most other planes. You can fly it like most conventional 60-inch planes and it will already be as quick or quicker than most. But if you really want to extract the most performance make sure you set up your radio to use the left (throttle) stick to work the trailing edge as flaps. To get the plane to fly in lighter lift and really haul in heavier conditions, you have to be able to add camber or reflex. I have the flap set at neutral when the left stick is in the middle and am constantly using the left stick to change the wing to maximize what I am doing. This is the way the designer intended the plane to be flown.