Kug,
The surface supplied air (SSA) system will still require a diver to wear a BC, full face mask and SCUBA cylinder so the idea of being less restricted does not app;ly. The benefit of SSA is the ability for a diver to have nearly an unlimited air supply if he were to become trapped underwater. It is certainly safer and in my opinion, a preferred option to carrying a second cylinder on the diver's back.
Interspiro has developed a pretty slick SSA systeam that provides hight pressure and depth and makes the tender's work much easier. There are no pneumo hoses and no regulator adjustements on the surface. There are too many benefits to list in an onoine post but the system is worthy of consideration. You can check it out at: Interspiro DP1
In addition to it being simple (KISS), it also deplys quickly and in my opinion, it could be used for rescue.
The Interspiro system is realitively new so there are not many in the field yet. I know Indianapolis has been looking at the systems and they may have purchased one. I am not aware of the present status. I also know that the Virginia State Police has scheduled a demo to evaluate the pros and cons.
Certainly, much more is explained in the Dive Rescue International program and students can learn first hand the benefits and applications of the SSA systems.
Regards,
Blades Robinson
All the information on this thread has been really good. It is tough to make a quick to set up surface supplied system other than a very simple hooka setup.
My only comment is, I don't know of any regulation/law or requirement for a surface supplied diver to wear a BC.
Someone please elaborate or explain. Is this an agency spacific requirement?