Multiple BIG-IP LTM Policies

Thanks for your response, yes we use the X forward, we are working to restrict the VIP to TLS 1.2, and we use the Policy to send the information that can parsed via Splunk from the IIS logs.  It allows us to determine which clients are still utilizing TLS 1.0/1.1 and determine how to remediate that service call or end user application.  So would putting that policy above the existing policy allow the HTTP headers values to be inserted for logging purposes and the existing policy still route traffic appropriately?