Indeed, the only way to know, for sure, regarding your rear, is with true testing. Stealth Stalker
rocks, in my book - he's not afraid to say what's on his mind, and yet, when he is mistaken, is also not afraid to cowboy-up and admit it, either. I'm sure that with his help, you'll have excellent optimization, as well as a good simulation of what you're likely to see in the real-world.
BTW, I'm totally jealous.
Not only of your sweet ride, but also the fact that YOU'VE GOT A LIFT!!!!