I am not positive, but maybe the head was not hot enough? I use an alcohol burner to heat my jig heads to paint and I developed my speed and count, meaning I count at my speed how long I leave the head in the flame and then dip and swish side to side fast and out tapping any loose off. Then just because I'm hard headed I pass it back through the flame for just a pass. Then I use a sharpened tooth pick to clear paint from eye.
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