For a ski labeled the "XXL" is sure has a skinny waist (80mm)!
I finally got out on a pair of Scot Schmidts in a 178 last season. That ski whupped my hiney something fierce.
I found I really had to ski the tips and lean over 'em to the point where it felt like I was going to somersault. That was the only way I could get them to be even remotely responsive.
They also chattered like the dickens on hardpack/ice.
I ended up taking them back to the shop I was demoing them from after 4-6 runs @ Heavenly and traded 'em for a pair of Blizzard Titan 9's, which I found much more nimble and versatile (especially on the icy stuff).
But if there's one thing I've learned in the past two seasons: each ski has it's own personality which will marry itself to some skiers and file for early divorce with others.