That's too small in the Artifact. Even for a jib board.
Get something Flat or camber and you'll develop proper skills better. Learning to press and butter for the first time on rocker tends to get people doin lean presses. Which means when you get better you'll have a damn hard time getting comfortable locking onto rails in 5-0's and nose presses.
Nitro Swindle 148, Signal Park Flat 150, Ride Kink 147, Rome Artifact camber 147, Bataleon Disaster 148, Salomon Salomonder 148, or a Capita Stairmaster 148.
If you have to have rocker just bump up to something a little more mid range with rocker. Arbor Westmark 150, Salomon Drift Rocker 152, Echelon Rounds 152, Flow Verve 152, Capita Ultrafear 151, or an Endeavor Colour 152.