I have the Conti's on mine and my DSC is always engaging. I hate it but am scared to turn it off. Don't really want to hit a guard rail. If I were in the US, I wouldn't give a crap, but in Germany on the autobahn, I take some exits at a high rate of speed and need the grip, which isn't really there with the Conti's that came with my baby.
I do hear good things about the Conti ExtremeContact DW though.