CottonCarrier Camera Systems sells a harness that mounts a camera on your chest via a nut that fits a tripod (I think I've got this right - I've never actually seen one). The camera can be released by rotating it sideways (See photos and videos at www.cottoncarrier.com. If it works, this harness would relieve the strain the strap of my heavy camera puts on my neck. Is anybody familiar with this harness who can critique it? Also, it ships from Canada. If anybody in the USA has purchased one, were you charged any kind of customs fee or duty to have it shipped? How much?