Actually it's a very good idea. I did read the post. I don't think YOU did:
"Should I start looking for something wider and longer?"
The answer is NO.
In general the ability and technical knowledge of the vast majority of people on this board is marginal. But when you factor in children, it goes down to almost nil. For people to suggest that a 100lbs 11 year old should be on a 100+ adult ski is mind boggling.
My daughter just turned 11. I could have her on any ski in the Volkl line up and she skis the Racetiger GS in all conditions. She is lighter. She skis in powder all the time. Hobacks, Mushroom and alta and Alta chutes etc. Unlike some of the "powder skiers" here she leaves a beautiful track with round turns. Chances are your daughter also skis at a higher level than most here.
I would guess that most of the desire for this comes from seeing older kids and others on the long an fat skis. She'll be there soon enough.
I am sure your daughter can do what you say as well, anyone who can ski well enough can, heck even Lowly me(well only in your opinion everyone who has skied with me will say other wise) can ski powder on carvers.
Where Utpowder skis there is allways untracked of some sort, sometimes its sun backed, crusted, wind effect heavy, when it first falls sure it light and there is TONS of it.
I would love to see someone like yourself or your amazing 11 year old daughter ski a 20 percent 20 inch storm all day long on GS skis.
your opinion has allways been skinny skis all the time, in fact you said that your 177 Ac4s were the best heliskis ever. Best for what? sucking wind?
and again round tracks are nice in powder, but sometime there is better turn shapes and smearing is fun, pivoting is better in trees, somethings you cant do on skinny skis.
and your daughter is 'better' than most of the people on here...well to be honest I have skied with not so skilled people on here, and SOME people I really admire. Above all, they all have had a GREAT aditude, unlike um you. If your the best most cynical skier in the world what good does it do for you if you have no friends?