[Lowell W]

OK...Yeah, it's hard to get at but I managed to get one of my small 1/4" drive sockets sockets (1/4? 5/16?) on the clamp by feel and loosen it. You'll never get to it with a screwdriver. When I replaced the clamp, I rotated it so the screw head was in the most accessible place-about 10:00 or so and now it's much easier to access.

Lowell