Well in your actual hand you should definitely play the CQ next, and if clubs don't split you can fall back on the diamonds. In your specific situation without the hand I would hook only if: 1) the opps were bad 2) RHO played the 2 lowest spots. If RHO plays a spot that is not the lowest one and they're bad it just makes it too likely LHO has made a random 9 from J9x play (since RHO will not falsecard their spots if theyre bad). Basically just remember you are gaining very little in equity if you finesse and you're right (ie, even if they NEVER falsecard from J9x it's pretty close), but you are potentially risking a ton in equity if you are wrong (ie, they always falsecard from J9x it is not even remotely close). Also, VERY IMPORTANT, make sure they don't play udca.