Hey Everyone

​​​​​​Flying in First Edi-Lhr-Sfo in Nov. Havent been through T5 for a while. Last time i came off a domestic flight..i passed through flight connection..up the esalator..and waited for ages in the Security queue. (I was flying in cw that time)
Im sure i read somewhere that a FT member found it quicker to go landside..and head upstairs to First check-in..through private security..and through the First lounge to Concord Lounge..is this crazy..or is there some merit to this?? Im arriving on early flight from Edi (8.30am)