I had Keith make me a DP a while back, it has the racegate mounted on the dp like the atr style, and it isn't supposed to interfere with the shield, but i haven't put it on yet, waiting for my motor to get dropped in. I am not sure if he understood the question i was asking, but i hope i dont have to cut the shield, it is one of those pretty kodiac west shields.
Headers sound promising, well priced and made of good stuff.