I'd have to scroll back further than I'm willing to at the moment, but I think that RobK has already ruled that the Corvette DP is USGT legal. Will have to see if he feels the same after seeing the McAllister DP and if he'll legalize it.
Personally, I agree with @TommyR. Of course, my opinion and $1.29 will get you a cup of coffee at one or two places.......maybe.