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extra tether to what?
Or, you could purchase one of these:They are expensive at $150.00 but well worth it I think. I'll be ordering mine soon. http://trollpro.com/
Ive seen those on ebay for $100 every now and then. Ive also seen that housing made from ABS reducer, pipe and a cap for the true DIY'er. I would definately make it big enough to where you can put the dive housing on for under water though.
Quote from: JohnVH on April 22, 2013, 10:08:51 PMextra tether to what?From the Gopro to the down-rigger wire. Just in-case there is a failure.