Northern Boy,
Or from a slightly different angle:-
Join PL with Direct Entry Command (but hopefully on BA Mainline Seniority List) and LGW SH Command may come after 7-8 years. Or bid to RHS of B777 /787 /B747 /A380 (A350?) after 4-5 years. Or stay LHS at PL base and wait for SH LHR command. Or just stay LHS PL as long as you like.
Good luck with the applications.
