WENDY PIERRO/Acorn Newspapers WORTH THE WAIT- Pro skateboarder Tony Hawk, above, signs a skateboard for a fan at Skatelab in Simi Valley last Saturday. Hawk was in town with other pro skaters to participate in a book signing for Sean Mortimer, author of "Stalefish: Skateboard Culture from the Rejects Who Made It." To Hawk's right is fellow skating pro Lance Mountain. (inset) Fans line up outside Skatelab as far as the eye can see for the chance to meet skating celebrities Hawk, Rodney Mullen and others.