Quote:
Originally Posted by OceanMan
I am sorry to say that I think that not much thing can be said about the efficiency of the fins out of the test you did Dave.
Speed is irrelevant when judging the efficiency of a fin because you also need to know the amount of energy you spent to reach that speed which is, as you said, totally subjective here.
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I am pretty confident that energy input was similar across the dives, if not exactly the same. If it was significantly different, I would have felt it. This is a subjective measure but it is better than relying on the 'feel' of the fins, which can be very misleading. e.g. the C4 30s felt 'snappy' and fast, but the profile said otherwise.
What the graph does say is that I can do identical dives with fins of any material and not feel any more or less tired. I think that's fairly significant. There are probably differences in efficiency, but they must be very small ones.
I do agree though that a totally objective test would be fantastic.
Quote:
Originally Posted by OceanMan
If I rely on my own experience, I would say that fiber is alway better than plastic if the stiffness is the same.
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If you think my test was uncontrolled (and it was to an extent), then personal experience with no objective data is even more unreliable!
