RegDCP - 5:34 pm on Aug 31, 2012 (gmt 0)
I hadn't even thought of that. In order for a zigzag site to go UP, other sites must go down.
I really doubt that the zigzag will place the site above it's final resting place.
If all the zigs and zags are below the final position, no collateral damage is done as the sites below it's "in transit positions" will be going down anyway.
The sites above the in transit page, but below the final resting place gain a temporary reprieve.