Wow, this thread is OLD! I did read all 28 pages

I have a couple questions that I hope someone can help me with.
I'm picking up my puppy on Monday. He will be 12 weeks old. How old should he be before I would switch to a prey model diet? I don't know if I should start right away, or if that would be too much for him... OR, if I DON'T start right away, would that make detox too hard? I'm a little confused.
Also, on the 80/10/10 ratio... everyone says to base that ratio on a whole week. So... since I'll be starting with chicken, is it boneless chicken for breakfast and a drumstick for dinner? But a drumstick everynight would surely be more than 10% bone... so maybe just two drumsticks a week, and the rest boneless breasts? Or maybe just ground chicken, because he'll be little?
Please help. So confused!