I am looking to build up a new wheelset for my DH rig, and I don't know whether to get the Mavic EX 721 rims or the Spank Stiffy. I have a friend with a lime green set on his lime green bullit and they look sick. They look super beefy. I am wondering can anyone give me any insight? I am thinking the white ones on black hubs for a black Marin Quake 7.3 with a Fox 40. What does anyone think?