The Ripstick G has a metal part to grind on.
yes a ripstick is better
Yes, he does! I saw a pic of him trying out a ripstick as the before and he was, like, falling of the ripstick and then there was an after and he was riding it perfectly. So practically, Yes!
To start moving on a ripstick you must stand on it. Then you start twisting your hips. If you do this correctly, the RipStick should start twisting and then, start moving forward.