I don't have a DSS Single Rig, but have a few comments about the company and the product. Several weeks ago, I contacted Tobin George (owner) with questions about several things. In addition to answering all of my questions, he truly went the "extra mile". He suggested that for me to get the best feel for any single item, I needed to see and try the system as a whole - made sense. He then offered to send me one to demo... FREE. Thinking that was incredible enough, I told him that I would need it as soon as possible and asked if I could pay for overnight shipping... he declined and picked up the tab. I can only say wow about the service.
As for the product, it is amazing. Well though out, well designed and build wonderfully. Their specialized hardware is excellent and the backplate construction is innovative and second to none. To my dismay, circumstances prohibited my actual diving of the unit so I cannot comment on any characteristics of the rig in the water, but I believe it is will follow the rest of my first impressions. I have since sent back the demo unit, but hope to purchase one soon.
An additional note, if you have any questions/suggestions you should contact Tobin directly (he's on this board as coolhardware_52). He will do an excellent job answering your questions, and when I mentioned a few ideas (as hair brained as they might have been) he was very patient and interested.
They've got my recommendation...
Terry