Thanks for all the responses. The customer we have is experienced in swiftwater rescue. He also teaches the techniques to PSD teams. He has been doing this for a number of years and has been called in when others have elected not to attempt recoveries including two occaisions when the Army Corp of Engineers deemed the recovery too dangerous for their team. Most of these recoveries are of whitewater rafters or kayakers who have gotten themselves into trouble. While I don't pretend to know all the techniques he uses I respect his abilities and figure he knows what he is doing and what he wants based on years of experience and training. I have obtained info from a posting on TDS where contacts were furnished and we will be making the calls tomorrow or tuesday. Thanks again for all the responses. And believe me this is in no way sport diving and therefore standard rules and techniques that may be appropriate for recreational and even some other PSD diving kind of get thrown out the window. Not by me but by someone with the training, experience, and cahoneys to do this type of diving.