Yeah the GT is the one on the green xD with no top. I wish someone made a urethane kit for the xD but no one does.
I am thinking maybe the GT one I was talking to someone else and they like it and haven't had any problems with it. But I may have to add bump stops to keep the xD from destroying the kit if I lay it down. The person who has it says that is should lay out no problem. And based on the info they gave me the kit would probably hit the ground before the bag were fully down. which wouldn't be cool.