RE:HYB pink genetics

I'm currently looking for information re the genetics of pink iris and hoping people can share the results of their crosses with pinks X pinks and pinks X violets/purples/blues. The literature indicates that the lack of anthrocyanin (violet pigments) is the result of a dominant gene ( I ). If this is the case then a pink X violet/purple/blue should produce half of the offspring with no anthrocyanin. These would be white, pink or yellow. the other half would have the anthrocyanin pigment and be violet, blue or purple etc. Also in this case pink X pink should produce some violet offspring, although the numbers may be linited, depending on the number of "I" genes present in the parents.
If the reduction of anthrocyanin is the result of a Recessive Reduced Anthrocyanin gene set(RRA) then pink X pink would never have any anthrocyanin pigment and would be pink or white with red beard.  In this scenerio pink X blue/violet/purple would produce predominatly plants with anthrocyanin pigment. Of course any hidden recessive genes can affect the results.
I have made many crosses of pink X pink and can't remember ever seeing a  violet, blue or purple seedling from one of these crosses.
If you have any information on this could you post it of forward it to me off group. Thanks for any help! 

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Chuck Chapman, Guelph, Ontario, Canada. Zone 4/5
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