I know of breeders who band and do a lovely job. I also know of vets who do a lovely job.
Then again, I've also seen vets who agree to it and do a horrible job, leaving the tails way too long (they worry about the risk of rectal prolapse). If they're worried, then I'd wonder why they agreed to dock a puppy where the standard calls for a dock 'close to the body' if they weren't comfortable doing just that.
Personally, unless you've seen the vet do docks before and you're happy with their work, I wouldn't let them dock my puppies tails. It's not like you're going to do it again with someone else. Docking once is enough for any pup at 4 days of age.
So simply, if your mentor bands and does a good job, yes I agree with it. Learn from your mentor and go from there. If you don't have a mentor, I'd question why you're breeding....
But if there's no mentor - then no, you have no business attempting to dock. Go to a recommended vet who has docking experience.