Originally Posted by
KARFA
there doesn't seem to be any fast track security for connections atm. if the arrivals immigration isn't looking too busy you may wish to go landside and up to check in level to use security there, you can choose north or south fast track.
The wait time for connecting security is usually short. It has never taken me more than 5 minutes. I would only consider entering the UK and clearing landside security if doing so via the First Wing. Even so, the walking involved would likely make thatbrothat route take more time...