IMHO FWIW -
I think that when you are on the "lighter" side its tougher to be on brands that have skis that fall in the too short or too long length. Finding the brands with the size break in your goldilocks length will be more helpful. It also seems that the majority of your skis have a turn radius of around 15m + which is on the longer side for a shorter ski. I only mention this b/c I think a lot of the women's "popular" skis have shorter turn radius - for example the Sheeva would be a 13m radius in your size compared to the 17m you are on now with your Volkls. You might hate or love that.
Softer, more playful, lazy is more like the Armada Trace you have. I have skied the Trace/er from several years ago in a 98 -super fun. DD actually has that as her powder ski and she a is a few inches/lbs more than you. But those are quite different than the Kenja/s Hells Bells of past. Other skis that are more playful with some float Black Crows Camox Birdie 97 or if you wanted narrower and softer Captis 87 Birdie? The Moment Hot Mess or Sierra are skis seem to fit the easy to ski/ float/ crud busting (you could check to see if you could demo directly from the factory). I'm sure the Stockli Nela would work as well as some Faction skis ..... and as far as the usual suspects (Blizzard/Head/K2/Nordica) I know you said you would not be able to demo, but see what the mountain has - It always seems that Mammoth has more women's 156's than 172's to demo.
I think that when you are on the "lighter" side its tougher to be on brands that have skis that fall in the too short or too long length. Finding the brands with the size break in your goldilocks length will be more helpful. It also seems that the majority of your skis have a turn radius of around 15m + which is on the longer side for a shorter ski. I only mention this b/c I think a lot of the women's "popular" skis have shorter turn radius - for example the Sheeva would be a 13m radius in your size compared to the 17m you are on now with your Volkls. You might hate or love that.
Softer, more playful, lazy is more like the Armada Trace you have. I have skied the Trace/er from several years ago in a 98 -super fun. DD actually has that as her powder ski and she a is a few inches/lbs more than you. But those are quite different than the Kenja/s Hells Bells of past. Other skis that are more playful with some float Black Crows Camox Birdie 97 or if you wanted narrower and softer Captis 87 Birdie? The Moment Hot Mess or Sierra are skis seem to fit the easy to ski/ float/ crud busting (you could check to see if you could demo directly from the factory). I'm sure the Stockli Nela would work as well as some Faction skis ..... and as far as the usual suspects (Blizzard/Head/K2/Nordica) I know you said you would not be able to demo, but see what the mountain has - It always seems that Mammoth has more women's 156's than 172's to demo.