The boat is Corsair F-24.
1. hacksaw blade won't fit (I tried that too, that goes into the "blade of the knife" category). There is just no distance between cb and trunk wall in the area that is stuck to fit any metal object. I.e. I can run a knife/blade etc around the cb until it gets to the raised "wedge" at which point there is nowhere to go. I was hoping guitar string would be thin enough to slice through where blades won't go.
2. I have full access to the top of cb - the trunk lid is removed inside the boat. Pennants are disconnected at this point, so they are neither in the way nor really do anything.
Motoring around and hoping for it to fall - may be, but since I would have to fully reinstall the trunk cover, I'd like to wait on that one, it's going to be a desperation measure
What about using a jack screw to push it from the top? I am torn between that being a great or a totally harebrained idea.