My trip up the mast proved less than fruitful. My intention was to replace my steaming/foredeck light with a new one, but the wires inside the mast were too secure. I couldn't pull the wire out enough to splice on the new light. I need to regroup and figure that one out.
The view from the top was pretty great though:
The AIS transceiver install was more successful, and I managed to take a screenshot of the MarineTraffic app AIS view on my phone: