I don’t think you can re-pass with DRS in the same zone because if you don’t activate it in the detection zone, you can’t use it for the deployment zone. So the car in front would never use it for that zone. However, in some of the modern tracks like Malaysia and China you have two zones very close together. The car that was passed in zone 1 can deploy in zone 2. I saw that happen with Button once this weekend, but he was not able to make the pass in zone 2.
In Malaysia, it looked like drivers were deliberately not deploying in zone 1 and waiting to do so in zone 2 so as not to have that happen.
see that's why i don't like the rules the way they stand, why would they make that rule if it wasn't to stop the car being passed regaining his position?and yeah i saw what happened to Button
if you are in the zone and behind i think you should be able to use DRS otherwise it's an inequitable gift to the passing car
why not just blueflag the car in front and be done with it, it's just not racing to me to give advantage to a passing car that the car being passed has option to use...