Flyfishing should work for them very well if not better than other techniques sometimes.
One good thing about using a fly is you can retrieve it really slowly - I caught I really nice one like that once. My experience with bass is not that extensive and maybe some of you will disagree but, from ones I have caught so far I think they are both greedy and lazy. They will snap at most things that will fit in the big mouths but they won't chase after a fly or a lure the way a trout will. The only way I seem to get them is by retrieving very slowly with the odd quick jerk or fast pull just to create some movement that will get their attention.
...Just my two cents worth.