here's another opinion:
as has been stated, the sanouks are NOT going to shine unless they are in 12"+ on steep terrain. this ski has a very soft tip, and because of this is no fun in significantly crudded-out snow (like when it warms up on a blue bird day in the back bowls anywhere in colorado). it skis shorter than it's length because of the swallow tail, but it has NO sidecut. it is a 193. do you expect it to turn at all with a 110mm waist on terrain that has anything resembling bumps?
i own a pair of 190 gotamas and have owned 195cm salomon ak rockets. the rocket was solid and skis much the same (at least in theory - they are different but let is rest here, guys). however, it is 95mm or less underfoot, and has significant torsional rigidity making it turn like mad. the sanouk , from my experience on 190 gotamas, will literally suck the second you get it out of soft snow you can "smear".
i LOVE my 183 gotamas for all around deep days and general in bounds skiing in colorado at areas accessible from denver. i ski my 190s backcountry only now, when the sled is out. they rock out there.
all this being said, i would impress upon you the purchase of a 175 sumo (at least between the voelkls). this ski has sidecut and a short enough length that it will ski trees and untracked with aplomb, while remaining fun when you get out of those 7 turns that would have been even sweeter on the sanouks. my 180 explosives are so damn stable in variable snow and hardpack and what not. based on that, i don't think you need to worry about a 125mm waisted 175cm ski not being stable. it is voelkl. and not of the gotama/sanouk ilk in terms of construction.
while 190cm fat skis rip, they have little to no space to actually perform the way you want them to within driving distance of denver inbounds. this is for two reasons (at least); a) there is not enough fresh snow long enough in the day to satisfy these skis, b) due to issues related to length of the radius on these skis, it is dangerous to ski them as they want to be skied due to the crowds all over the place everyday.
of course, if money is no object and you HAVE to have some sanouks (i'm not sure i would turn a pair down myself), go get them. they are pretty awesome in the right snow.