just what exactly is too narrow? I am curious what the ideal powder width is. I remember great powder days on my volkl p40's, and they were narrow. But I'm on about an 84mm width on my k2 public enemies and i couldn't imagine needing a wider ski. When I worked in Utah I skied some seriously deep powder with quite a bit narrower than 84mm. How wide do you need to go. If you think we're not skiing it aggressive enough, well, that's a surprise.
As I said, it really depends on what you want to do, if you are happy wallowing through the powder at low speed, I'm sure Public Enemies do the job as poorly as any other 'all mountain' ski, but if you want to go faster, drop bigger cliffs, or do any tricks, I find the bigger the better. On a powder day here I ski on 185s with a 127 mm waist. In NZ I find 100mm underfoot is fine. I really can't understand how anyone could ski deep powder on a big ski, then go back to their smaller ones, so I can only assume you haven't. Give it a go, then get back to us.