I thought it would be fun if people would post some fish finder screen shots and describe what we're looking at.
This is one wire going down (hand trolling, notice the pauses). You can see the cannon ball at the bottom, and the individual spreads above. A halibut came up off the bottom and hit the lead spoon, dragging everything out of the transducer cone. It broke off and the gear swung back under the boat and started reading again.