I was under the impression that DSC prevents skidding but not spinning out--the ASC is what prevents spinning out/slipping.

Accelerating at the beginning of a turn makes mine spin out too (it's the only time I can make it slide), but if I coast into a turn and then accelerate out of the turn, it's solid as can be. I also have a 4x4 Explorer and the X is way more stable than the Explorer in 4high.