C&B,
My recommendation would be to put the money it would cost for a BB towards tackle and scents! IMHO it's WAY over rated. Find bait, find fish, good presentation, catch fish! I fish regularly with a guy on this board that had a BB ( notice I said HAD) and saw no difference in fishing with it than without it. There are tons of gadgets out there that say they will catch you more fish and I think most of thwem are more hype than actual substance. Like I said, find bait, find fish, good presentation, catch fish.

In all actality, just how far through the salt water at 150 feet can that .6vdc voltage be felt? for arguments sake, let's say 10 feet.....maybe! Well I guess that means you already found the fish if they are only ten feet away from the down rigger cable and I want a fish that close to be interested in my GSBT not my downrigger cable!!

IMHO anyway.

Good luck with whatever you go with though, hope it all works out for you!

I thought about getting one for my boat as well for a while, but decided against it. Especially after checking my inherent voltage on the cables and found it to be running at .68 vdc. Did you check your voltages to see where they are at without a Black Box