well from what I heard, the chineese forgot to prebend the edges at the tips and tails of the ski, making there temptation and more pressure for the edge to pop out and delam, so yes every pair then would be bad... but it doesnt mean every pair is going to delam. Just depends on the circumstances.
Black Ladies WatchMen
Mine friends are still holding up, it probably also depends on how hard you charge with the skis too. People who like to ski every other day and just hit the park all day will probably have any pair of skis delamn soon.