I think the shedding thing is just a problem that develops sometimes, regardless of manufacturer. I have a fairly expensive ($90ish) brush from a good manufacturer that has shed like mad ever since I got it. I kept hoping it would taper off, but it got up to five to 10 bristles per day, and I finally contacted the manufacturer. He replaced it in a hurry, and the new brush has only lost two bristles in two months.
A Vulfix shouldn't shed like that. I had one that would lose one or two bristles a week. I'd suggest getting another replacement... :shrug:
Josh