We exchanged tickets from 1997, 1991, 1987, and 1982 on our last trip in 2004. It was very easy and it didn't cost me anything extra. They gave us cute passes about the size of a business card to slip in the turnstiles. I works out beter to trade them in for new tickets but it does not work to your advantage to use them to trade in to a MYW ticket - the cost it crazy that way. Good luck. HTH.