As moebow said, if your arrows are tuned to your bow, it won't make a difference. With the Stingers, you won't notice a performance difference. With a larger broadhead, the 5" feathers will stabilize it a bit better. I like the 5" shield cut feathers just because they look cool, not because there is any real difference. Some claim shield cut feathers are noisier, but I haven't noticed a difference there either. Occasionally you will get an arrow that makes feather noise (a hiss or whistle), but I have had that with both shield and parabolic feathers. I haven't tried the banana cut ones, so they may be quieter.