Willow is shedding her undercoat. I am line brushing once a day in an effort to corral the dust bunnies and hair clumps but it seems impossible to keep up. Is this a transitioning to her adult coat? If it is, how long does it last? Putting causes aside for a moment, are there any other strategies for coping than more frequent vacuuming and more frequent brushing? I use a rake, a comb, and a slicker brush to groom her. First I rake, then I line brush with the slicker and then check the job with the comb. Is there a more effective approach? I seriously don't know what I'd do without this site! Thanks in advance for any suggestions that don't leave me pulling MY hair out.