RE: Carrying a dinghy
No davits are designed to carry at sea , as a breaking wave could fill the dink, which would be quite a load aft. Inshore there great.
We have used the Simpson Laurence davits on boats and find them excellent.
Coastal cruising , anchoring out , always creates a problem with waste storage, the dink is a perfect spot for carrying it.
One downside is the boat becomes 5 ft longer if you ever have to pay for a dock.
On LUCY our lobster conversion, the 9ft Grumman is so light I just grab the bow painter and yank it up over the stern rail.