A perspective from someone much lighter than you skiing the 167cm Watea 84's in Colorado....
I demo'd several skis at Keystone at the end of last season (there was nearly a foot of new snow and I skied a variety of conditions, including both packed groomers and fairly deep snow hidden in the trees). My favorite was the Watea 84's (vs. the Dynastar 8000, Nordica Afterburners, and Rossi B83). I bought a pair that day and intend to use them as my go-to ski for most "mixed condition" Colorado days (but not for hardpack days).
For me the 84's like to carve but are not overly demanding about it, they edge well for their width, they flow through soft bumps without much effort, and even skied deeper snow (12"+) amazingly well (I felt like I didn't need anything wider for that day).
- At 130lbs my take on these skis may be different than that for someone of your weight.
- They are fairly forgiving and not what I would call a particularly powerful ski (i.e., they are not very energetic or lightning fast in their response, and do not edge aggressively).
- They seem to suit my technique fairly well (controlled mid-speed/radius turns) vs. higher speed and longer radius turns or a very aggressive mogul skiing style.
- I would say that this ski prefers soft conditions (which may not match what you want to use them for). In particular, they did not edge aggressively enough for me on some of the harder moguls I found as the day wore on.
Given the above (and other posts on EpicSki) there is a chance that you may not like this ski; especially if you are a very aggressive and/or high-speed skier, or want to feel secure on Colorado "ice". If so, you will probably prefer the Fischer Cold Heats, Head IM 78/82, Nordica whatevers, Volkl AC40/50, or anything else beefier and more precise.
OTOH - if you like the Atuas, and if they are essentially an older version of the Watea 84's...