I don’t see any thing in ear cropping, if done carefully, For those who crop their pet ears, there is a unique and interesting site. At Medical Tools instruments are top quality and competitive too. Whenever I’ve to buy a product I visit
http://www.medical-tools.com/eshop/ for comprehensive veterinary instruments, it’s a pretty good place to shop I highly recommend it for anyone with even a passing interest in surgery.
You can find ear cropping clamps for Terrier, Pit-bulls and schnauzer breeds and complete toolkit for ear cropping