1. Always breed to get the best, because if it's worth breeding, than try to breed the best you can. Do your homework! Ask for advice from successful breeders, not from ones that never bred qualitative Bull Terrier (though those have greatest desire to give it to you).

Use only the best studs no matter of who owns them or where they are, never mate your dog with mediocre.

2. Breed to get good head. Bull Terriers are breed which the most important merit is good head so if you don't tend for good egg shaped head, maybe you'll get nice looking dogs, but never a good Bull Terrier.

3. Breed to get equation. While you breed to get good head you must beware not to lose good body, because Bull Terrier got to have strong body, substance, not only good head 

4. Always tend for best temper you can get. Most of today Bull Terriers live as pets, so they're full of love for family with whom they're living, as to other people. There is always a risk in breeding, but good temper we should never dare to risk.

5. Be realistic when you judge dog's faults and merits. To progress you must be honest with yourself about faults and merits that your bitch has and potential stud also. There is no perfect Bull Terrier, it never existed nor it will. Electing of stud for your bitch is matter of priority, desire and finally a compromise.

6. Focus on merits. Successful breeders are looking for studs with positive merits - merits that exceed some minor faults that stud possess.

7. Never breed two dogs with the same faults, and with the lack of same merits.

8. Linear breeding. Linear breeding appeared to be the best solution toward success, but sometimes we must breed with stud that have no ancestors as bitch, so it would be right to check whether that dog already had descent and what's the quality of descendants.

9. Don't forget the color.

10. Trust your instinct. At the beginning your mentor give you advices - breeder that you asked for advice. Later if you tend to be known as good breeder you must rely on your own judgments and learn from your previous mistakes.

 

Adapted from the book "Bullterriers Today", author David Harris