Reselect Pool Member Based on HTTP Response Payload

I need to check the response payload for a certain string. If the string is found, then try the next pool member. This works in the current draft. Is there anything that will make it cleaner, more efficient?

• Triggered on GET requests only
• Search response http payload for "Correlation ID for Node"

• Reselect pool member if string is found

  when CLIENT_ACCEPTED {
       On each new TCP connection track that we have not retried a request yet
      set retries 0
      set default_pool [LB::server pool]   
  }
  
  when HTTP_REQUEST {
       Only save the request headers if this is not a retried request
      set uri [HTTP::uri]
      if { [HTTP::method] eq "GET" && $retries == 0 }{
              set request_headers [HTTP::request]
      }
  }
  
  when LB_SELECTED {
       Select a new pool member if we are retrying this request
      if { $retries > 0 } {
          LB::reselect
      }
  }
  
  when HTTP_RESPONSE {
       Inspect data
      log -noname local0. "[LB::server addr] -- $uri"
  
      if { [HTTP::header exists "Content-Length"] } {
          HTTP::collect [HTTP::header "Content-Length"]
      }
  }
  
  when HTTP_RESPONSE_DATA {
       do stuff with the payload
  
      if { [HTTP::payload] contains "Correlation ID for Node" } {
  
           Server error, retry with remaining pool members
          incr retries
          log -noname local0. "ID logged: retry $retries out of [active_members $default_pool]"
  
          if { $retries < [active_members $default_pool] } {
               Retry this request
              HTTP::retry $request_headers
  
               Exit this event from this iRule so we do not reset retries to 0
              return
          } 
      }
       If we are still in the rule we are not retrying this request
      set retries 0
  
      HTTP::release
  }