I have ordered my 25 Cornish x. I got the first bag of feed and have everything ready. When I went to the small local feed store the owner who is always very nice and helpful said that they have had Cornish X in the past and always have fed 18% protein straight through. We discussed the 27% turkey feed and 20% starter feeds but he still suggested 18%. Everything I have read says >20%? Any thoughts? Should I not do the 12 on and 12 off? What will be estimated process time?