TLS is more like LHR today:

As noted by Schind , G-TTNX had a first flight

So did G-TTNZ

G-TTNV has had it's RTO and engine tests, so hopefully 1st flight is soon

& finally G-TTNW is currently on its 3rd test flight

BA aiming for 3 or 4 deliveries from TLS on the same day in the next few weeks?

Pilot37