I totally agree. It doesn't pick up color any well. I'm trying to love my brush, but I'm failing..
I was looking for a flat eyeshadow brush, and I generally love MUFE brushes, so this seemed like a no-brainer. I ordered it off Sephora.com for a whopping $35. But when I got it, I was immediately disappointed. It didn't feel nearly as dense as I had expected. The head was also too big for contouring. This could only be used for application on the lid. Even then, it doesn't deposit a lot of color. I guess the 12s brush is the more versatile option, but it's $5 more and not available at Sephora. In defense of the 10s, it is a beautiful brush and very well crafted. It just doesn't serve my purpose. I'm exchanging it for the dense, flat Smashbox #4 brush (only $26 too!)