I'm with graco, if she doesn't want to brush a few times a week, short is best. And if she's having trouble getting a brush through them, I'd be willing to bet they are already too matted to be saved. However, I've found that Ice on Ice by Chris Christensen is awesome stuff for a detangling/moisturizing spray; it's unscented, really helps with tangles, cuts brushing time, AND it has sunscreen in it, which is important for my black mini poodle. Even my moms scent sensitive Lhasa can handle it, (anything spray on that has a scent turns him into a scratching maniac!) as well as my mom, who is as sensitive as her dog, lol! It's pricey, but worth it. And the spray nozzle on it distributes a very fine mist, so you only use a little at a time, which helps.