3. It's not kerbside check in in the US sense, more a sort of escort service. Make sure your driver drops you at the BA gate. Look for someone wearing a BA sash and tell them you are travelling F. Someone will then escort you through the ariport, via the premium x-ray machine to the F/J check in. You might then get escorted through to the lounge...or not. Personally I would leave it as late as possible to get there - 1h15 before is plenty if you OLCI.

1. There will be a veg option on the men iirc, given the route.