I did end up sending my old GI mags in for the exchange. As a couple of you have pointed out, the program makes sense if you send in more than a couple of mags. I exchanged 10. They new mags seem to be of good quality (much better than the ones I sent in), and they all work the way they are supposed to.
MCPO_SOCM_RET, how did you get free shipping? The form I used said free shipping is not available for the exchange program. Free shipping would really make this a great deal.