I received my Thermold Master Molder Mags today. Plus a refund on the sale price difference. One thing I can tell you is that the spring is not weak. In fact the spring seems stronger than my other mags, I will load them up and see it that holds true. They dont look bad, heavily supported on the sides by thick ribbing and the followers dont tilt very much at all. Time will tell...got my fingers crossed. Gonna load them up as soon as I finish this post.