Basil
Check BA's bag stats over the years - very poor. You've been very lucky. By way of example of the opposite extreme, BA managed to not transport my bags with me on three successive trips to Scotland. Bad enough in and of itself, but made worse by what was clearly a lack of interest that the problem actually existed. The attitude is fostered by knowing that the person actually suffering is locked in by virtue of corporate travel policies that they don't control, and hence threats to go elsewhere are empty ones. Like I say, 41% of slots at LHR is the real problem, and one that no government has any appetite or incentive to resolve.