Not a chance in hell for me to start doing this. I know how to do it and have done it on old beaters with a loose trans, but wouldn't ever do it on my 2SS. The risk vs. reward is just not there at all. What does it save you, a tiny fraction of a second on a shift? The risk is destroying your transmission. This is a 426HP car, I'm sure it'll rip those teeth off in a big hurry if you mess up your timing just once under power. This is no 100HP Civic.
Heck, I'm giving the clutch a quick stab going from in-gear to neutral for coasting. To me the SS's TR6060 is a tight shifter, I'd like to keep it that way.