Just got back from 9 days skiing Park City/Canyons with the Stöckli Laser AX 175, Volkl M6 Mantra 184, and Head e-GS RD FIS 193.
I love the Volkl M6 Mantra and Head GS FIS, depending on the conditions.
The Volkl M6 Mantra is so playful, yet solid and fast on uneven crud, powder, and messing around on the side banks of runs. Great for trails like Pinball at Canyons (a run between the trees).
The Head GS FIS is a dream on hard packed groomers. Fast turns like they're on rails, yet super easy to turn (easier than my old school Rossignal 201).
The Stöckli Laser AX is a wonderful ski, but it made me realize that I just don't enjoy short radius turns. So I'm selling it. If I want to enjoy icy groomers, I will use the Head GS FIS. If I want to enjoy powder/crud, I will take the Volkl M6 Mantra. The Stöckli Laser AX is in between the two, and with a less exciting short turn radius, and since I would leave it behind most the time, I don't need it when I have the other two.
What surprised me the most was how much I enjoyed the Volkl M6 Mantra. I wasn't expecting much when I first bought it, but it blew me away. I love the stiffness and the GS turn radius. If it was softer and/or with a short turn radius I probably wouldn't like it. But it has just the right width (not too wide) combined with these aspects to make the perfect combination. One thing I need to get used to is how light they are in comparison to heavy skis that I'm used to (my muscle memory makes me drive them hard and bang them together sometimes because they are so light).
Throughout this thread, some people said (or implied) that there is no reason for a non-racer to buy a GS FIS ski. It made me doubt my sanity and wonder if I made mistake to buy it instead of changing over to trendy short/shaped skis. However the Head e-GS RD FIS 193 is amazingly FUN! Now I can assert that the people who are giving this advice are misguided/biased to the familiar/inexperienced, and I hope that others will not be discouraged from trying out GS racing skis for recreation, even if they are not actively racing in events.
Next I am tempted to buy the Stöckli Laser WRT SX (185, 190, 193) to continue the experimentation with something different than the other two. Looks like that might be a custom order item.