Okay I'll Bite!
I bought the black box and installed it on my boat but before I did I re wired my boat how the book said. It was very hot 1.02 not .6 .7 .8. Salmon went ballistic when they got close to the boat. (Way more then normal) When I was finished my rewire my boat read .60 to .65. Enough said.
I do however bake the boat using the black box for sockeye and I don't dare mess with what works for me.
I have found that my catch ratio really went up when I really paid attention to detail like constantly watching your rods, sharp hooks, presentation, depth, speed, etc. and a big thanks to the many insightful people that have made me a better fishermen. Blue Orca, Iron Noggin, Wolf, CS, Baddog, Roe Bags, Madd Dog, yo mama and so many more over the years! [8D]
Black box or not I know the more things I do right the better my chances and yours to.
I don't have problems with downrigger wire because I use the best, rinse it with fresh water after every trip and change it yearly.
Braided line means no voltage ???? I'm not going there. However my boat catches fish even when I forget to turn on my Black Box
Cheers ME