Many thanks for the responses. I just bought the boat and haven't stepped the mast yet. The setup is (90% sure) what is illustrated above but I'd like to improve on it. On the 16 there is no step in the transom -- straight across -- and the tiller crosses over. A bridge as photographed would have to be about five inches tall. I'm compulsive for overkill -- belt and suspenders -- so an overkill attachment would be difficult but I suppose doable. I'm still thinking a loop of line, ends tied to a fiddle block, a couple of blocks far outboard on the transom, jam cleats inboard. A boom vang would be nice but I don't think there's a place to put one. There are only inches between the tabernacle and the opened hatch and only open cockpit behind the hatch. I'll have to take a look at that, though.
Drifting a little, I've seen several accounts about genoas overpowering Compac 23s when the winds come up. Anyone have experience to share about a 16? I only had a jib on the 16 I had in the 90s.