SSL Session ID persistence or HTTP Cookie persistence for server load balancing

Hello members,

I was planning to use SSL Session ID for persistence as I was not sure if inserting a http cookie will mess up with anything the real servers might be inserting as well, but then I found this short text at this link:

https://docs.citrix.com/e...on-id-persistence.html

What are others using for their servers load balancing thru the firewall?

Is it safe and better to simply use HTTP cookie based persistence in the hope that multiple cookies can be inserted and fortigate will only be concerned to look into for its own cookie?

Thanks