On the first few times I hooked blue gills for bait, I hooked them too deep. I put the hook right through the spine and they were instantly paralyzed rendering them useless. When I was fishing last night I figured out a way to prevent this. I held the bluegill up to the light of my lantern and you can see the spine through the fish. I could see exactly where the spine was and was able to hook them just above it. Perhaps this will help out some of the newbs, like me!