Pics, please!!
I thought it was a shit idea at first, but now it's grown on me. The keener you are for a spot, the more likely you are to get it. They simply release a spot back to the website when someone cancels, so by refreshing the webpage (every 5 secs, all day) you'll be the first in line to grab any vacancies! That said, on the two occasions I've done this, I've only seen spots in red and white appear, never yellow or green. Of course, as soon as a red spot came up I stopped looking, so it's hardly representative. Just my limited experience.
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