If you look at the Hook line, you have a core that was basically a high end core a few years prior, raised the RG, lowered the diff, and put a weaker cover on it. If you use it for the condition it is meant for, it will be a good medium oil bowling ball, with a smoother path to the pocket. If you were looking at more friction, or less of a move, you would ball down to a Desert Hook. Weaker cover, higher RG, lower diff. If you need less ball than a Desert Hook, and you've properly changed the surface, then plastic is your next answer.