Well, I was reading a Canadian fishing newspaper and found a small diagram of what I was talking about.

Starting at the ball and working your way up:

Flasher/dodger either attached to the ball or just above it. I am not sure of the length off the ball.

Then "stack" your bait above the dodger/flasher extending past the length of the first dodger/flasher. Not sure of this length either.

Next, stack another dodger/flasher.

Then another bait above that dodger/flasher.

You can have multiple baited lines running off of one downrigger line.
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Carl C.