No problems here with mine. I pulled-in a 4lb'er on my 6'7' Medium "Carrot", rigged with a Shimano Sahara FB2500. Did the reportees state how or under which conditions theirs were broken?
I have a 7' 2'' model. Caught a 6lb 8oz on it. No problems at all. I have heard people breaking them but I think he did it himself becaue it broke when he was casting.