Lord Helpus, the eventing test event was, IIRC, in 2010 in the autumn. I don’t think it was last year. It ran at 2* level, and this is supposed to be a 4*. IIRC, the Hong Kong course was very different from the test course. The test event is mostly for footing checks, although I am very likely wrong about that.
According to some of the H & H reporting, the rain this spring was slowing course construction down considerably. They’ve been building up to the very last possible minute.
All of the jumps are either portable or will be removed after XC. From what I understand some of the other British venues will be buying some of them and using them later.
Poor Ronald Zabela is going to be the first person out of the box to ride the course; then one of the US riders goes. It’s a great advantage to be farther down on the start schedule, so the first Team rider doesn’t automatically get a low dressage score to start the day; and on XC feedback on how the course is riding has filtered back to the participants. Zabela isn’t a particularly good dressage rider, so the first US rider (and the first for about the first five teams) will have to take the almost automatic low score. The Brits are very lucky to have drawn the 17th spot. The New Zealanders were even luckier. But if it rains XC, the last riders may be harmed by bad footing.