Hi Glen check out Tonys web site he has a system that work specifically for down riggers, I had the privilege to fish with him personally and he has done an amazing job at creating this system. Its a bungee with a release clip on it that attaches right to the down rigger ball all you have to do is watch the rods in the out-rodder and the down rigger system follows the same action.Their is not set speed just watch the rods to get that pumping action.
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Bob
USCG 1600 Ton Master
23' Proline W/A