Haha, when I open, I allocate my mains in this way:
9,7,3,5,6,8,2,10, 4, 11,1.
4,10,11 and 1 all have various issues with them, so they go last. Quite often 4 and 1 aren't brought down at all.
So yeah, I guess you could say it works in a pattern. But on thurs night I had 2,3,4,5,6...