In my readings and online searching, I have noticed that there are a ton of hook styles available and in each class( dry, nymph, streamer, etc.) there are many options as well. My questions is how important is getting the hook syle right for a pattern. I understand that a dry isn't going to perform well if it is tied on a heavier wire hook. And the lengths make sense to me as well. But will it really be all that bad if I use a streamer hook for a big stonefly pattern, or a dry fly hook for a nymph? What about if I use a different style dry fly hook in the same size to tie a pattern that calls for a certain size? If the fly looks right, fishes right, and does anything that I would ask a hook to do, does it even matter?