The 991 911 PDK gearbox is a dual clutch the same as a DSG box. It's not exactly the same but it's extremely close. The CSL box is not DSG, it is SMG, it is a Semi-automated Manual Gearbox the same type of design as currently fitted to an Aventador for example and is still very relevant, if not more agricultural in it's shifts, it's shifts are far more positive and brutal and more fun than any dual clutch transmission. Hence my reference to "flappy paddles", I was referring to all semi automated gearboxes without a torque convertor (automatic).
The point I was making is that the DSG box is very dual mode in the 991, as I expect it to be in the Golf. However, in the 991 it is quite "convenient" having it in auto mode which tends to make you drive more sedately than you would in the manual.