I've run the TD's "Backwards" on a dry track. They ran just fine. I didn't feel any difference.
They are awesome tires. I highly recommend giving them a try. And they make a 295/30/18 that works great with the 265/35/18. That's what I've been running. With Apex Arc-8 10.5" rims in the rear, there's no problems at all. C'mon, if you're gonna do R-comps, then I say put as much rubber down as you can!