An optical image splitter disposed in the path of image-bearing light along an optical axis has a coated dichroic surface disposed at an angle of 15 degrees or less relative to incident light along the optical axis. The golf club head preferably has a volume between 300 cubic centimeters and 500 cubic centimeters. The unique properties include lower surface tension, better spreadability and a dry skin feel, all of which cannot be attained without the use of a terminal silicone. The QAM signals are combined and converted to an optical signal that is transmitted over an optical fiber to a receiver. Another modification may be made in which a pair of plugs with ferrules and a ferrule aligning member are used, and the ends of the opposed ferrules are inside the ferrule aligning member.