Posts by Dan

Nice invention Jeff. Is it still a smooth release? Reminds me of the mechanical bow string release.

Some of this will be pretty basic, but I'm often reminded how many guys don't understand rails. There are two kinds of rails; water channeling, and tendon rails.

Water channeling rails are used to channel water down the blade, they eliminate the fin slipping off the water effect during the down stroke. This can be felt with many plastic fins which usually lack water channeling rails, and with some fiberglass and carbon blades where the manufacturer cut corners and didn't install good rails. Watch the beginning of this video of Sheri Daye using DiveR fins, notice the erratic movement of the fins on the descent. This is partially due to the DiveR being longer than the conventional 90cm, and is exaggerated because they lack water channeling rails, the fins become harder to control.

Ideally the water channeling rails start where the footpocket tendons end and continue all the way to the front edge of the blade. The height of the rails should be about 1.5cm/a little over .5". The grade of rubber of the water channeling rails should be soft enough that they don't interfere with the flexing of the blade, but stiff enough to maintain a straight profile. Another function of these rails is to protect the side edges of the blade against impact, the edge is where fiber fins are most sensitive.

Here is the schematic for the Speardiver water channeling rails.

There has been little variation on the concept of water channeling rails. C4 came out with something they call the flap. Just as the name suggest it's a piece of loose rubber in addition to the normal rail height, that flaps around. I'm not sure what their reasoning for it is, but from what I hear people that get these fins end up cutting that part of the rail off. I never tried this flap but I miss it on my fins like I miss it on my ****. See the behavior of the rails when the blade is flexed, doesn't look efficient for water channeling.

EDIT - I found out the flap name is in reference to the shape of the front edge of the C4 not the rail flap.

And must have good aim to hit it

Kolt, while they may work in your particular case, you're not aware of the difference and how they may fit in other footpockets than what you're using. I've been installing rails and blades for a while now, and can see differences where other people can't. After pointing this out to fishingdude he could see the difference too, his footpocket tendons were barely holding on to the Leader blade edges. I didn't go to the trouble of designing good rails for nothing. Leader is just further saving money on their blades by using a cheap rail solution. More information on rails can be found here http://spearfishing.world/fins…on-rails-explanation.html

I just wait it out. It's not natural for me to keep having it so I expect it to go away and it does. I think it's stress related so I try to relax. Also lifting very heavy stuff exacerbates the situation, so obviously try to avoid it. If it's really bad pop a couple of Tylenol 3s and have a nice day

Quote from Kolt45

I have the Leaderfins Carbon Waves. They're built with a sandwich of carbon-glass-carbon. They are considerably lighter and much snappier than the camo fiberglass version (I know from side-by-side experience).

This difference you describe between the Leader carbon and Leader fiberglass, is the difference you'll see comparing Leader carbon to Speardiver carbon blades, the Speardiver being lighter and snappier.

I'll try to do a side by side comparison of the width and rails, people need to see why footpocket tendons don't grip the Leader blades properly.

The Gopro doesn't come with a memory card.

I don't know what else you're picking up in the water, but if it's only fish and you're not using a boogie board, don't bother with a bag use a simple stringer instead.

Welcome Solomon.

A float line and float is a good set up for spearfishing. For beach diving a modified boogie board is even better.

Good for you and the Gulf

Were you using a pneumatic?

Finding a parallel to your situation in an adventure book is better than a friend feigning sympathy I was going through a similar pain up until a week ago. Sounds like maybe a sciatic nerve problem http://en.wikipedia.org/wiki/Sciatica

You could use a broken golf club for a carbon section. The golfing equipment stores throw them out.

Good story Oto. Well done on the fish.

Hurry up and get back Don

Yeah Pucho, I remember we'd say you learn who your real friends are on moving day. But these days with everyone so busy I don't know if it's so true anymore.

A beautiful and promising coastline. No beach diving there I suppose

Hopefully no oil spill with this one. They said it wasn't producing oil or gas.

Beautiful gun Julio. Good luck with the sale.

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I remembered one change in Miami, I see some grouper now where I never seen them before, going back 4 years. For me the other noticeable changes are more seasonal than being over a period of a few years.

Sounds like you guys need to get together and have a beer