Well, firstly, I'm amazed that Elena can backpack multiple days with a 33 liter pack. Wow, rock ON, girl! When I lived in the northeast, my daypacks were larger than that!
Now, for the rest of us...
Dawn, I'm assuming that you're using the women's Deuter 60+10 Act Lite, that the capacity of the pack is about right for your gear, and that you want a FRAMED pack to transfer the weight to your hips. If that assumption is correct, a UL pack will only be 1-1.5 pounds lighter than your Deuter, at a cost of $230 - $250. Worth it? Only you can say.
There are very few places that actually stock "cottage gear" packs, so unless you live in certain areas of the country (Denver, San Francisco, L.A., Seattle) you will probably not be able to try on the pack before you buy it. That said, if you order a "standard" version of a pack and it doesn't fit you, most cottage gear companies will allow you to return it (in new condition) for a full refund (you pay return shipping).
So how do you know if it's going to fit? You don't 100%, but cottage gear manufacturers will be happy to talk to you - at length - on the phone to help ensure that you'll get a good fit. Obviously, they want you to be happy with their packs.
Very few cottage gear companies make "women-specific" packs, but many of them have options for their "unisex" packs that will help a woman get a good fit. In particular, most make "S" straps to accommodate a woman's chest, and many have dual hipbelt adjustments, which help "fine tune" the fit on a woman's curvier hips.
Take a good look at the videos on the websites for, in particular:
- Six Moon Designs (esp. the Fusion 65, which is a fully-adjustable pack like the Deuter, and weighs 2.5 lbs)
- ULA (Ultralight Adventure Equipment), esp. the Circuit or the Catalyst
- Gossamer Gear, esp. the Mariposa.
I think watching those videos and reading the spec.s on those websites will give you a much better idea of what you can get. There are MANY other choices if you want a smaller pack -- but that will depend of what type of backpacking you're doing, in what weather/terrain, and how long your trips are.