security chap cinfirmed that T2 is (still) 100ml limit, but no restrictions on overall quantity.
Lounge chap confirmed Escape for BA (and many others). Qatar gives Escape to card holders. but reserves the considerably more comfortable 1903 lounge for its premium classes.
Paying punters fork out £55 for escape and £65 for 1903.
Sadly Saudia, my chariot next week, continues to send its premium guests and card holders to the other, Weatherspoon-like subterranean lounge run by the same team.
PS. Awful fuss about a wad of tissues in my pocket coming through scanner thingy. But just realised I had my wired ear pods strung round my neck. So much for technology and vigilence.