Hi Alessandro,
I just checked the manual for the Weather Wing WS-2 and couldn't find any support for a user-specified template (like a tags file) in the software/hardware. It does support FTP at 10 minute minimum intervals, but no way to specify a tags file.
So.. no, it can't be used with the Saratoga (or other templates) as far as I can tell..
Regrets,
Ken