F5 Lync iApp with Cisco firewalls

Hi, thanks for the info, especially on the FastL4 profile. I did just that but still don't see return traffic coming to the Edge Server. I see on the F5 the Edge server sending a SYN to the external client and our Firewall logs shows a connection from the Edge server to the External client as allowed. We also do not see the F5 Self-IP being blocked on the Firewall, which we were seeing previously. From my troubleshooting so far, it seems all is in place but for some reason we're still not seeing a return connection to the Edge server. Any suggestions are appreciated.