clipping

okay, so i just bought a 5 week old Doberman and the breeder told me to get his ears clipped at 6-9 weeks.. well I've had one vet tell me 7-8, another vet says right at about 9 weeks which is the "prime" time for the cartlidge to stand without little wrapping them if any ("more naturaly"), and a...

Okay i have seen all sorts of topics here and i was curious to know which is better for nail care? clipping or grinding and why? i have a 6 month old and i have always used a grinder but am curious as to other Dobs owners out there.