Scubaroo once bubbled...
First, the Eclipse wing does not have the slots - it uses a regular STA (of any make, as long as it has 11" holes) that has slots for cambands.
Second, (trying to avoid sounding like self-promotion here), if you're already looking at an OxyCheq wing, OxyCheq has just released the O-Pac at DEMA, which is a single-piece harness soft pack ("semi-rigid" backplate) alternative to a regular travel or aluminum backplate, designed for warm-water and travel diving. And anyone else wanting a one-piece hogarthian harness without the backplate.