By the way of flagging something that may cause issues: boarding by cabin being flown ahead of BAEC status. It is almost a recipe to incite more DYKWIA types and their behaviour. If I was a BA GGL CCR flying in ET/WT, having to wait for F and/or J to board before I do may tick me off just a bit. While some may debate the likeliness of someone of that status flying in the lowest cabin class until cows come home, it doesn't remove the possibility of that potential friction point. I think BA should board highest cabin and highest status together and then progress down cabins+tiers accordingly.