Hi Rick 486. Interestingly, my first reaction was to go with the Hunter davits. It is a unique system which does not interfere with the transom access. However, there are some issues with their system, at least for me.
1. There is an awful lot of steel and weight hanging off that arch. It's as if there were a 2nd arch.
2. Aesthetically, to my eye, it is overwhelming.
3. My dinghy weighs 150 lbs and there will be times when I would choose to haul the dinghy up with the 9.9 motor still attached to the transom. Hunter provides ONLY a 3:1 block and tackle - there is no upgrade available, which means I have to modify the mounting and purchase the necessary hardware and line. They also do not give a credit for not using their block and tackle system.
4. Although the cost is initially acceptable, Hunter requires an additional non-refundable $500.00 (plus postage) for the construction of a plywood shipping box! This box, along with the upgraded blocks and tackle, bring that cost to an unacceptable figure.
I have researched 2 or 3 companies that offer transom mounted systems which are comparable in cost, are lighter, accept more weight, use far less steel, provide a 6:1 purchase system, pivot in when not in use, are easily removable for storage, and do not inhibit access to the transom and lockers. The system I am considering, although I have yet to make a decision, is the one offered by Kato out of Annapolis. I am hoping that another owner will respond to my request for information and possibly pictures.