Breeding on this forum is a very touchy subject. As stated in the forum rules we do not condon unethical breeding (not stating you are, so please dont take offense) though we are open to discussion about ethical breeding and preserving the standard of our beloved breed. All ethical breeders miust start somewhere and should you want to become one i would suggest speaking with a local boxer club and getting intouch with reputable breeder in your area who can become a mentor and help you along the way. that said...as for which cycle would be best i think Jennifer (newcastle) can best answer this. Breeding should not be done though until at least 2 yrs of age and after all neccessary health testing is done on both the male and female boxer.