I'm sorry, it's actually just the AT and the Free that interest me. I think that the XL would be just too much for me.
How did I get interested in Stockli? I went to the Gold medal Demo Center near my home hill looking for something new to demo. The youngblood behind the counter insisted that the best I could try would be the Stockli Spirit Free in a 160 cm length (it's actually longer than my Rossi 160). Doubting him - but curious nevertheless - I took them out. I skied and instructed Level 4 on it for a day, and was mightily impressed - not intially, but after I acclimated to them. Just for comparison, toward the end of the day, I took a run on my 170 cm Rossi Bandit X's - and they felt too light and insubstantial in comparison, not enough edge hold, too much skid, not enough stability and comfort.
I liked the Free better than ANY of the skis I own - better than the Rossi T-Power, Bandit X and XX, better than the Head Monster iM 70 Super Railflex. I know that they're well made and sturdy. If I could believe that they'd be even ALMOST as good as the XX or iM 70 in natural snow, I'd buy them and sell all the others.
The Free made great short turns, long turns, did it at slow speed, high speed, held an edge like a scalpel - only skidding was not as good as the others. Edge to edge, I myself am not that fast on any skis, so these worked out ok.
Now I want to know about the AT because it appears to be a more versatile ski - but I'm concerned about its short turn capability. How does it ski differently from the Free?