I have a set of Penn 600-series downriggers on the back of my 250CCP. There is a yellow knob at the base that appears to hold the downrigger in place. Based on schematics that I've seen there appears to be a spring mechanism built it. Does anyone know how to remove this? I've tried turning, it but it doesn't move. Is this fastened from underneath in some way or am I just an idiot?
Any help would be great.
JG