Custom? Yes
Rick: is yours custom?[/QUOTE]
Yes. Don't know who did it. The PO had it fabricated. H&S sold the boat both times, so I assume it was done in San Diego. It has a plywood backing plate in the wing locker through which it bolts. I'm sure Garhauer will have something nice, and if it is hinged, it will make it easier to run wires and work on the dome. However, it will also make the base a bit messy looking. I would urge you to get an antenna arch too. Makes mounting all the rest of the stuff in one place a bit more sanitary. Like AIS, WiFi, TV, GPS and cell antennas

Like I said, go by and take a look at it.