Fred's Hens :
Either high layer level calcium is harmless to chicks or it is potentially harmful.  It cannot be either one or merely one's opinion.  What does the agri-science say?
THIS is logic! 
		
		
	
	
But it comes down to the fact that, in the end, different people have different priorities and will pick and choose what they want to believe.  While some people (myself included) will read "potentially harmful" and immediately steer clear, others will see "
potentially harmful" and figure that saving a few bucks or having the convenience of feeding one bag of food trumps any 
potential risk that may be involved.  Some of us raise chickens as pets or for show, while some of us raise them as a commercial enterprise.
But, just because you take risks on your own flock by feeding layer pellets to chicks, should you be promoting the practice to others?   Likewise, many people on this site decry the use of medicated starter, saying they've never used it and have NEVER lost a single chick.  Are they right, or are they just lucky? Is it responsible for them to be advising against medicated starter to people who live in an entirely different part of the country and/or climate? 
Myself, I almost had a fit when my feedstore clerk brought me a 50 lb bag of starter crumble in a bag marked "Layer feed".  I immediately assumed he had made a mistake (The more I deal with people over the years, the more I'm inclined to think they know next to nothing about anything.  Unfortunately, I find that I'm correct 80% of the time.
 
But in this instance, I was wrong--Being a newbie, I didn't know that the tags were what really mattered, and they sometimes pack the feed into any bag that is handy.  BUT I DID know that I was not going to be feeding my chicks layer feed during their growing months, due to the higher calcium.