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KEARNSY said..busterwa said..
Bull**** If I white pointer is in a predatory mode a shark shield wont stop it. Heres a preventative measure that will stop it. Unfortunately there is to many tree hugging hippies living in there perfect dreamworld and think there **** don't stink.
This is my concern - Shark shields are like using an air rifle on a charging bull .
Kearnsy i guess you have to listen to either the science or the internet trolls

Heaps of people say that they won't work, they have no evidence of this and if they try and quote something from history, they twist it and don't explain the full story. Like above. Nothing is ever going to be full proof. They are not designed to make you invisible or 100% safe, but what they will do is give you an option to retreat when a shark has taken some interest in eating you.
It may only be a small power source, but it works on the electrical receptors of a shark, hitting their nerves. In the middle of taking a mouth of food, stick a 9 volt battery on your tongue and see if your still hell bent on taking that mouthful
Studies on shark shields have shown to work, its your decision weather or not you use one.. Why not go talk to Dave at Katana, ask him and see his reaction to the question. He has invested big bucks and had so much testing done its not funny. The science and reviews cost huge dollars (The shark shield unit testing was $1.9 million) and thats the only reason you haven't seen everything already from Dave. But its coming.
Seatbelts save lives, but not all the time. If i i hit a truck head on doing 100kms an hour its maybe not going to work, does that mean i shouldn't were one
When your kids need medical help, do you ask on a forum or go to the doctor, go to the source of the product and educate your self that way..
If your still struggling id be happy to lend you one of my boards to try