Ok, one more thing to add to the puzzle, don't know if it is related yet. Found out today that I should be running premium for one thing... haven't been. But when I fill up, get in to start, every time it starts for one second, then dies. Then it starts right up. This happens every time I fill up...

Yes, the supercharged engines are supposed to be running premium fuel. You can use something lesser if needed when premium is unavailable, but you will take a performance hit. Try a couple of tankfuls of premium and see if that solves your problem with the hesitation. You might also want to try one of the stations that have the "top tier" gasoline.

When you fuel up, do you top off the tank? That has been known to cause issues. When you get gas, stop when the pump kicks off and see if that takes care of the stalling.