fuzz raises an interesting point. are there stiffer combinations that yeild different feedback response? as in, a more difficult initial kick, but better energy transfer? It would seem that this would be as hard to pick one correct setup as it would to pick one ideal fishing rod.
It seems to me that factors such as the style of diving, how you prefer to kick\fin, whether the diver prefers to have more power in the beginning of the kick or more comfort throughout the entire kick.
seems like there might be an ideal [I]base[I] but the actual "perfect fin"might be an impossible goal to chase