Oh my... This is becoming more of a headache especially seeing all these letters, however, lets start looking at more of an idea when breeding double recessive, we often have, as breeders, a visual male or female to help speed our projects. This scenario is also more of a realistic one when considering a breeders perspective.
The resulted breeding provides us with:
4 x het Candy (MmRR)
4 x Double het Candy Pied (MmRr)
4 x Candy (mmRR)
4 x Candy het Pied (mmRr)