This is my first boar brush. It is a used Omega boar brush(I got 4 brushes in a lot all that were all in used condition). I have no ideal how old this brush is. It feels super soft to skin. But the brush has no backbone and zero scrubbing feeling. When I face lather with this brush it feels more like a mop rather than a shave brush. Is a brush in this condition considered to be spent? Or is this normal for well used boar brush? Thanks