When I did my first Cat2 audit, I got pinged on two issues;
3.20.1: 2 manual bilge pumps; 1 above, 1 below operable with boat/seats shut; permanent discharge pipes. I only had a manual bilge pump operable from the cockpit (the one below was electric). Finding the right out of the way spot and still being able to sit there and use it, and installing the discharge pipes and drain neatly was a bit of a challenge.
3.11: Keel stepped mast; heel securely fastened. (required even for Cat 3)
As I had a deck stepped mast, we had to fit a tether from the mast heel to the heel plate. Thankfully both had purpose built pad eyes for it, I just hadn't realised that's what they were for

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Both made a lot of sense when I stopped to think about it!