Shimano spools

My wife uses a Shimano Syncopate reel because she enjoys the one hand casting. Well these reels do not come with a spare spool and would like to find one. Does anyone know what other model spools will fit this reel? The Sienna seems to use the same internal parts so I'm thinking the spool is the same. Any ideas anyone?

Have to post an update. I did just recieve a callback from Shimano and they were able to locate one for me. Being shipped today! Just boosted my impression of Shimano.

Thanks for the lead I will check them out. As expected I never heard back from Shimano service center about the spare parts offer.

try asking a reel repair shop... might know or even have what you are looking for... Easterlings in Milwaukee is a good place to start http://www.superpages.com/bp/Milwaukee-WI/Easterlings-Reel-Rod-Repair-L0011662299.htm

Wonderful idea except I have already called them and they have none in stock. Backordered with no arrival date. They did offer to look for one from a returned reel that is used for spare parts. Though I am not counting on a return call.