Bucktails are very effective flies. They are all good basic flies. Just use sparse bunches. Try to visualize how many layers you are going to use and how you want the fly to look. When finished, you should be able to hold the fly up to the light and see through the fly.
Test prototype flies in the sink to be sure they swim properly.
Bendbacks may need heavier than usual wings to insure that they swim with the hook point up. The scales of baitfish reflect surrounding light so that they appear translucent, which gives them a ghostly shape. Don't try to create an exact replica or soft sculpture. More material is not better. More flash in not better.