I have a 2500 series SEdona and I took it down to Shimano in Irvine last summer and the guy gave me a replacement (the newer model), at no cost, no question asked, AND....an additional spool because he had seen that I had brand new braid spooled on my original spool. He told me that the old and new sedonas used the same spool.
That is how I got my second spool.