…What possible reason could there be for using nonstandard, propriatory connection threads - other than trying to lock me in to your product line. I won't buy...
Although I am equally stunned by this decision, I doubt that “locking customers in” based on hoses was the motivation. I imagine there were hours of discussions and arguments over every aspect of this design — there always is. I would be interested to understand what engineering compromises lead to this design decision.
Personally, I suspect that the anticipated value of some design features were assumed to be of greater value than using standard hoses. Design is always a process of determining the least painful compromises.
In my judgment, the swivel and dive/predive feature are not worth using non-standard hoses. In fact, I would rather not have the swivel due to increasing failure risk compared to any comfort advantages. I also feel that removing the regulator mechanism from the housing without tools, like the Omega 1 and 2, is of great value.
The original Omega used a non-standard ½" hose and first stage thread in an effort to optimize high flow rates. However, the fitting on the regulator itself was “standard”. The first stage had several standard LP 3/8" ports and one ½" port on the end. As I recall, ½-3/8" reducers were not available at the time but it came with a ½" plug.
IF incorporating the swivel was the main motivation that lead to the proprietary hose, I would prefer a replacement for the swivel than an adapter. Better yet, offer two versions like the no-swivel Atomic Z-series.