Hi BA and T5 experts. Since moving to London, and flying BA more often, I've been enjoying lurking on this forum. I have a question I was hoping to get some guidance on.

My wife (CX OWS) and I (CX OWE) will be traveling LHR>EFL from T5 with my two parents (no status). We will each have one checked bag and all the tickets are on one booking.

Will my parents be allowed to use Fast Track security?
I was thinking about going with my wife to the F Wing, checking in all the bags there, and then going through security (Fast Track) together with my parents. Thoughts? Unfortunately I'm quite sure we will not be all allowed into the F wing/lounge. The J lounges will still be a treat for my folks.

To slightly complicate matters, I'm planning to switch to the BA program before some QR J flights to Asia in a couple weeks but might only be Silver by the time this trip to Greece happens so I'm planning to keep this booking under my CX FF# until the last minute (check in).

I appreciate your advice and look forward to being more active on this forum.

Cheers