i caught a 25" laker fishing in 5' of water, about a mile from the nearest water deeper than 10'. Fishing with a spoon for perch, all of the sudden my vex lights up and fish on! Was sure it was pike till i fandangled it out of the 4" hole i was using. Funny thing is, instead of hitting my spoon, he hit my size 16 jig 6" up the line.
By the way, those water beetles REALLY HURT bad when they bite...way worse than a big helgrammite