I am not fond of grower, b/c here it's only 15% protein. I would either use multi flock with free choice calcium or layer. While "they say" to not give layer to birds not yet at POL, I am not concerned about pullets who have lost their peep and found their cluck eating layer. IMO, any free range bird takes in more calcium than that found in layer. If extra calcium were problematic for a DP flock, we'd see free range birds dying earlier than the bird who spends her entire life penned. This is simply not the case! The studies attributing kidney damage to non laying birds that consumed extra calcium were based on broilers. Those birds are prone to many systemic issues simply based on their breeding.