A little over two weeks ago, I bought a Simpson Eagle 2 brush from Pasteur Pharmacy in NYC (great shop by the way). Every time I have used it over the last two weeks it has shed 8-10 hairs while creating the lather and while applying it to my face. The first few days I figured it was just because it was new, but it has continued. Is that normal for a Simpson? Do I need to give another week or so? Or, is this just a defective brush?