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Posted By: Zach Rice

What your doing with cutting up the mylar holders and putting them in the binder sheets will work fine. Even without the mylar they will stay preserved. I have a binder with some cards that I am either selling or am going to sell to keep them seperate from my collection and they stay fine. I can also tell you that I know collectors who have been keeping cards in binders since the 70s and still do it today without any complaints.