The 10k FA is a great reel and the fastest retrieve for popping, especially with a 20k FA spool for capacity. It's got a 6:1 ratio (okay so it's just a little faster that 18k SW). The new reels are an improvement but nobody ever had anything bad to say about the FA's.
based on the previous postings the older model Stella FA 20K fits on the Stella FA 10K. If you are interested in an extra spool, I may have one to offer.
I am interested in the spool let me know how much you want for it
How long ago were they made? Are the SW's new this year?
The SW's are the newest reel and have been out about a year. The 10k SW is the same size (a little lighter actually) than the old 8k FA and has about 20-25% better line capacity. JMO, it is the star of the SW line. The FA's are still around and working hard. Some can be found new. You wouldn't go wrong with either Stella.