I have the MTH on my MCSC and it makes the car muc more driveable with the DSC on . As it come from the factory ti take away too much power and takes too long to give it back.

IF you gas it and dump the clutch you do a face plant into the stering colum. With MTH it takes just enough power to hook it back up... I absolutly love the DSC with MTH installed. In my opinion the MTH is worth it solely for that purpose.

The DSC is a safety feature, so turning it off all the time is not wise IMO. Now it seems to help accelrate faster becasue it give you as much power so you can keep the wheels on the pavement.