@s162000, Alonso did mention the DRS line in the post-race interviews, though he didn’t expand upon it.
It was clever by Hamilton, but I still don’t understand why Alonso was suddenly so close. Did Hamilton notice Alonso was closer before turn 8/9 and subsequently slowed down in the chicane, planning to let him by, or was he in some sort of trouble?
It is pretty ridiculous, this possibility that DRS creates, and I’m actually surprised we don’t see more of it. Of course, you are racing more than one other guy so there is a limit to how much you should slow down for a DRS line, but watching this video I can’t help think that Hamilton should have stepped on the brake as soon as Alonso jinked left.
Here in Canada the situation was particularly annoying because the meaningless fact that you cross a white line behind another car gives you a boost for two consecutive straights.