I began feeding my girls the start-N-grow (19% protein) when I got them, and have just recently switched them to the 16% layer SS feed at 19 weeks, when I found my first egg. So far, they've been doing great. But I would like to know if there's anyone else here that uses it, or if someone has a good or bad opinion about it. SS is all I have access to, since the closest TSC is 100 miles away.