I'm W/ 6speeder.
Blame it on the way the car is tuned. I did a compare w/ my C5 Z tuning tables and discovered that the C6 Z is set for a much slower idol down.
I changed my C6 profile to look more like the C5 and I'm much happier now.
PS If you ever saw a LS7 apart, you'd think exactly oposite of heavy anything in the rotating assembly. We've got some very, Very nice pieces in our rides with one purpose, go fast and last!
Enjoy!
