It's really simple Jeff. I've never had this happen but all there is to "the system" is the strap you apparently have in your hand and the slot. Once the foam has been compressed and left for a little while it's easy to go back in for a few minutes if need be. Go back in and fix it. I'm guessing they had the inside portion of the strap folded in the wrong direction, allowing it to be pulled through.
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Ron - Tucson, AZ