Skype Policy only to this app

FG running OS 5.6 with multiple FSSO policies with application and deep inspection filters.

We intend to isolate Skype traffic on it's own policy with no inspection.

Created an application sensor for Skype

Created a policy above the others with the following setups:

1 - applied the application sensor (from lan->wan all/all) - started blocking some other applications as well...

2- no application sensor, but used the destination internet service address that comes built in - didn't pickup skype, it get's picked by the other rule.

Any thought on how to pick up and isolate just skype (not business) before any other policy?

Thank you