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... then you will end up spending an hour trying to catch a single stubborn fish.... but you will know that there is a fish down there.
That is hilarious. I do exactly the same thing. Before having a flasher, I would just leave a hole when the bite stopped, but now that I KNOW they're down there, I have to catch each and every fish I see. I spent 30 minuets today trying to catch a 5 inch perch, but it was there, and I did catch it.
I marked a suspended fish on my first trip with a flasher and I spent a solid 20 minutes trying at least 10 different jigs... and then I caught this monster crappie!