I was actually about to post something similar. Im having the hardest time trying to get my filly to blow her coat. Her neck and shoulders are pretty much done, her back looks like an old dudes comb over! Her barrel is still horribly fluffy. I rubber curry and use a shedding block about an hour almost ever day and it seems like Im getting nowhere.
On a good note, the coat shes shedding out to is a brilliant copper penny gold! It just looks funny when its covered in patches of cream colored fluff.