Yup, it's the 4600. I just lightly squeeze the throttle, and set the curve really low. I did try to go fast but with the 4WS, it toppled immediately. It really sucked because I didn't have the body on, but was cool at the same time. I didn't think the Mamba had that much power, BOY! was I wrong.

That's why I picked the 4600, it's more than enough. And the Mamba Max contoller is great. Brushed, Brushless, auto-lipo cutoff, programmable. What more can you want.