I have one of the old analog ones and still use it. When me and my 3 other family members are trolling for Bass with Rattletraps, the color selector's color choice catches more fish almost all of the time. There have been days that we weren't catching anything, checked the color selector switching to a color that none of us even considered using, and proceeded to have one of the best days ever. It could be coincidence or chance, but how many years does it take to be sure? May never know. 20 years is probably enough. You drop the probe down to the depth you think your lure is running.
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