Thanks guys.
Not really keen on getting into the pros and cons of single engine winch operations, has and is being done all over the globe with great success in its intended roles. Not all operations can afford nor require anything more.
SuperF: Agreed mate. With current engine technology and very low true failure rates that aren't maintenance related, there is bigger things to worry about, i.e. a tail rotor failure, where any number of engines won't save you, but floats might.
tqmatch: This is the query, i was trying to find where there is actually a float system around that had two sectioned bags fore and aft of where the cable would pass similar to how the A119 floats run. Have seen a few US based aircraft running both, yet no indication of any protection to the float bag should it be deployed.