Obviously it should be that the lead can never be greater than 2 due to the competitors being connected by a strap, and any excess votes given to someone with a lead of 2 aren't added in. And then of course if there are four consecutive vote receiving hours where one competitor gets all the votes (rather than just 4 consecutive, so you can get 1am, 3am, 4am, 7am, if there are no votes in the in between hours), then that person will have touched the four corners and have won.
I just made this up on the fly so it's gotta be right.
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ONLY FIVE CAN LADDER.
Sushi, kamikaze, fujiyama, nippon-ichi...