I just bought and installed the Armorwerks Aluminum Solid Servo Mount for my Notorious and so far its obviously way better than stock, but for me its better than the multi piece aluminum one as well (which I have). Even with the aluminum multi piece one there was still some movement in the mount. But with the solid one it doesn't move at all. Install was also a lot easier since its just one large piece. Less parts, less chance of loose screws, and it doesn't require the spacers either. I got the black one but it comes in 3 colors. Heres some pics.