It sounds like you spend a lot of your time on groomers. Be realistic about what you're skiing, if you're spending most of your time on groomers and harder snow why ski a pow ski all the time? If your looking for a one ski quiver I'd recommend getting something between 88- 105mm underfoot that will rip far better on groomers and tracked out off- piste than the obsetheds and still float when you come across some untracked. For specific recommendations where do you usually ski, do you ski switch often, and are you usually skiing in the trees or open bowls and faces?
Or go with the two ski quiver like you where saying, thats probably your best option. You don't need a true (race spec.) SL or GS ski, those will kick your ass far worse than the obsetheds on groomers.
Here's a tip: instead of wearing an avalanche beacon just put a dog treat in your jacket.
That way, when the search and rescue dogs find your body, they can have a little treat.
Leave no turn unstoned.