bent shank fishing hook VMC Round-Bend Short-Shank Treble Hooks - 2 This makes them very useful for egg patterns. Curved Shank | BKK Hooks

And here is the oil seal of the rotor (red arrow)

But so are beetles, ants, cicadas, spiders, and many other terrestrial insects that routinely end up in the water

I dont think it cost a lot from FB marketplace (very little of my kit has) but feels so nice in the hand that even my 5yr old uses it since its simpler than a bail arm mechanism to learn casting with

Also note that boathouses and piers can sometimes out-produce other hotspots when the sun is high in the sky, as fish will sometimes hide in their shade

Heat and friction could be the cause of this grease transformation, but maybe the wizards at Daiwa have created a magical transforming grease