My chicks are now on Ace Hi chick starter mash, since that's what they were eating at the feed store when I got them. With my parrots, cats and horses I've always put a lot of thought into feed, but I'm starting from zero here. I know about the gross characteristics of starter, grow and laying feeds, but nothing about ingredient details and current research... what do you consider when you are choosing a brand and format for a commercial feed, aside from availability and price. What are your favorite products and why?