Allen,

Use the largest size hook you can cast effectively with your gear.

Bass that size have a mouth that can handle ANY size hook you would be likely to cast, and the larger the hook the better job you will do in hooking the fish.

If you use 'standard' length hooks, you can get a larger hook gape for a shorter shank length. This gives you better hooking potential, as well as keeping the gurgler balanced properly. That little extra weight of the larger bend and point seem to make the fly work and cast more effectively. Look at 1/0 through 3/0 worm hooks or Mustad 3366s.

Good Luck!

Buddy