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From what I read, If you breed a clear male,to an affected female, 100% of the litter would be carriers. Breeding a clear male to a carrier female, 50% of the puppies would be clear and 50% would be carriers. If you breed a clear male to a clear female, 100% clear litter.

What VetGen says about breeding a clear male to affected, carrier or clear female:
Breeding Is Safe. No Affected puppies will be produced. However, some or all puppies will be Carriers. Accordingly, it is recommended that Carrier dogs which are desirable for breeding be bred with Clear dogs in the future, which will produce 50% carrier and 50% clear animals, to further reduce the disease gene frequency. These offspring should be tested by VetGen's test for this defective gene, and if possible, only the clear animals in this generation should be used.


VetGen's definitions:

CLEAR This finding indicates that the gene is not present in your dog. Therefore, when used for breeding, a Clear dog will not pass on the disease gene.


CARRIER This finding indicates that one copy of the disease gene is present in your dog, but that it will not exhibit disease symptoms. Carriers will not have medical problems as a result. Dogs with Carrier status can be enjoyed without the fear of developing medical problems but will pass on the disease gene 50% of the time.


AFFECTED This finding indicates that two copies of the disease gene are present in the dog. Unfortunately, the dog will be medically affected by the disease. Appropriate treatment should be pursued by consulting a veterinarian.
** Affected - In the case of vWD Type l - This finding indicates that two copies of the disease gene are present in the dog. These dogs always have a potential to bleed given the right circumstance and will always pass on the disease gene (mutation) to their progeny. Please see the following page, for more detailed information. vWD Report Also, inform your veterinarian and consult with him/her regarding this test result.