
Is it like puppy fluff?(you know pups with loads of fluff on their ears that will disappear when they mature)
Does it come out if you try to strip it with your fingers? I know somepeople do strip the puppy fluff out if the dog has grown but kept the fluff...
I would give the hair there a good wash/conditioner and then see if some of it strips out as if the hair is really dry it could well be stuborn pup fluff :)
Even if it is not puppy fluff the amound of hair could make it behave like it does, so some stripped out might help.
If it does not come out easily you will just have to live with the partings.