http://www.autosport.com/news/report.php/id/91556
the DRS will have two zones from Canada onwards. In montreal, this will be on the long straight after the hairpin and the start/finish straight. Unfortunatly, there is only one detection zone still, meaning that if the pass doesn't come off in the first zone, the follower will have another chance. But this means if the overtake is done in the first zone, they will be able to pull away in zone 2. This could have been really good if they had a second detection zone letting the driver who had possibly just been overtaken fight back, producing some great battling hopefully through turns 1 and 2 in Montreal whilst also being fair on both drivers.
Such a shame.