The folks at WCS are great. I always knew that they had excellent customer service, but I recently experienced it firsthand. My Colonel X2L had been shedding since I bought it in May so I contacted them asking about possible ways I could fix it. I tried their suggested remedy, but it did not work. They then promptly sent me a new brush as an exchange and paid shipping both ways. I've been using the new brush for a week and it seems fine - no shedding. Thanks WCS!