I'm open to any study on this, could well be interesting to do a basic comparison between the data from the teams and data from a basic CFD study.
Below are some images of my rear wing models. The aerofoils themselves are very detailed, as in the mostpart, are the endplates, but the actuator is a bit slap-dash. It should be more than good enough, however, to give promising results.
Whole wing - DRS closed
Whole wing - DRS open
Slot gap - DRS closed
Slot gap - DRS open