Join Date: Mar 2007
Location: Grand Rapids, MI
My guess is it's too big. I've had two prong collars come off dogs and both were Herm Sprenger collars (both properly fitted). I also have an HS with a quick release and I've never had the quick release fail, but it's kind of a pain and just makes putting the collar on even more complicated despite the "quick release" (almost impossible to do with gloves on). The pet store brand prong collars I have actually "pinch" tighter, it's harder to get them on/off so they don't pop apart.