Mount two wireless receiver packs using cold shoe attachments on the mast. This adapter attaches to the 1/4"x20 thread accessory screw port found on professional Video Camcorders' carry handle on some JVC, Panasonic etc. cameras. This mount leaves the cold shoe attachment on the front of the camera available to mount your light or shotgun mic in addition to two mounted mic receivers on the mast. A third receiver pack could also be mounted on the front shoe if you have aux inputs on the camera as well as two XLR mic inputs. This could be modified to put a cold shoe connector on the bottom of the mast extending one into two sockets but I would worry about the weight and reliability of the juncture connecting the mast to the camera.