ergophobe - 5:34 pm on Aug 14, 2012 (gmt 0)
So let's say you have a super secret telescope that can see the Googlebot coming and change your DNS as needed so G never sees the parked site. What have you actually tested at that point?
You're testing PPC revenue on a parked site that is still listed in Google and getting organic search, not just type-in traffic. But since that can't endure as a long-term solution, it's hard for me to see what useful data you would get from that test.