As far as a grappling hook goes, I'd like to hear what all the competition players have to say about that. That would seem to give a huge edge to gunners IMO.
The grappling hook would work for competition if:
1) You can not use any force power while using the hook
2) You cannot attack while using the hook with the saber or a gun
3) You can not use the hook in the middle of an attack (heh so long distance DFA's are not possible even tho its hella fun)
4) And you could have the hook use up a small amount of force energy