I bought a pair of these fibre bi-fin blades from Waterways back in September. They must have been one of the first pairs that Peter sold (in fact, I think they may have been my idea as I suggested it to Peter after trying his open heel bi-fins ). I finally got some extra footpockets and got around to mounting the blades and trying them out (only 8 months later! my apologies to Peter for being so tardy on this).
Mounting these is a bit of an issue -- I had to cut off most of the rubber stripping that comes on the edges of the blade that goes into the footpocket. To keep them together I took a drill to the blades and put 2 holes along each of the footpocket "rails", and 2 holes where the screws normally go, and then used the miracle of zip-ties to secure it.
I only spent about 10 minutes in the ocean with them today. They felt quite stable (i.e. no twisting / torque) and I think they delivered noticably more power than my plastic blades. These fibre blades are slightly longer and have a square tip with a semi-circle cut out on the end. The strangest thing about them is that they are completely flat, unlike the plastic blades, so the angle of the blades feels a little different. I'll need to use them more to get a good feeling for the differences -- perhaps some dynamics in the pool. The fibre looks like it'll be more fragile than the plastic, but that's just an intuitive impression based on the look and feel of the material compared to the plastics. I might try a friend's carbon fibre C4s as well for further comparison.
Mounting these is a bit of an issue -- I had to cut off most of the rubber stripping that comes on the edges of the blade that goes into the footpocket. To keep them together I took a drill to the blades and put 2 holes along each of the footpocket "rails", and 2 holes where the screws normally go, and then used the miracle of zip-ties to secure it.
I only spent about 10 minutes in the ocean with them today. They felt quite stable (i.e. no twisting / torque) and I think they delivered noticably more power than my plastic blades. These fibre blades are slightly longer and have a square tip with a semi-circle cut out on the end. The strangest thing about them is that they are completely flat, unlike the plastic blades, so the angle of the blades feels a little different. I'll need to use them more to get a good feeling for the differences -- perhaps some dynamics in the pool. The fibre looks like it'll be more fragile than the plastic, but that's just an intuitive impression based on the look and feel of the material compared to the plastics. I might try a friend's carbon fibre C4s as well for further comparison.