The cage design in the above photo examples were different, and chances are the mild steel cars were heavier too. Also, even though they all went on their tops, it's hard to say exactly where and how much the forces actually were. So I don't think the photos prove much of anything regarding MS versus CM. Having said that, I have nothing agaist CM, in fact I am of about the same mind as Monte and personally TIG everything and use only CM for reasons he stated.