I think your Lightweight Women's Double Scull are more likely to medal than your eight. I don't know what's happened to the CAN W8 but they were a long way behind the US, GBR and NZ W8 this world cup season. They also got beaten by the Dutch 8 this season without the 3 crews mentioned in this race. They're obviously capable of medaling, the Olys particularly rowing throw up all sorts of upsets. But going on current form I wouldn't be surprised. But I think your best bet or even banker is the LW2x. Just went through it again, don't think Alan Campbell would medal in the single, I'd swap him for Damir Martin (CRO) to be on the podium.