I went in yesterday to begin process on replacing head. Before I went I spoke to manager I asked if I can come in, get the process rolling for the new head (PUMA case and such), take my car home, and only return when the approval and parts are in. He agreed. When I got there, it was a different story. Now he said that depending on my VIN I might get updated lifters BEFORE the head and I'd have to leave my car there, and so on. NO, stop delaying the head replacement. That is the ultimate real fix. I got a little frustrated and left without leaving the car.
I'll return when the tick really begins to annoy me, as the lifter replacement (1/2011) has really patched it very well.
I guess you can do that when you have CPO until 2014. I'll DEFINITELY get the head replaced by then.