Formula 1 race director Charlie Whiting has revealed a decision on whether to alter the DRS rules will be made after the Chinese Grand Prix.
There are calls to make the DRS zones longer under the new aerodynamic regulations, with the wider tyres leading to increased drag and increased downforce making overtaking harder.
However, any potential tweaks to the rules will not be implemented until after the second round of the 2017 calendar.
It's a little difficult in testing to fully assess the DRS," Whiting said. "We've had some information of course. We don't see any significant difference at the moment.
"That's why we feel we should assess it over the first two races, but it's actually not long enough [in Australia] for our needs, which is why a couple of years ago we introduced a second activation zone based on one detection point.
"In other words, you try and get the car closer to the car in front on the first bit, and do something better in the second bit.
"It seems to have worked reasonably well, but we can't actually make it any longer here anyway. So we've undertaken to assess it after the second race."