Hello everyone! I am due to fly on the 292 in J as a GCH this month and have a few questions.

What time does check in open for the 216? I will be driving from about 5 hours away and plan to arrive significantly earlier than I need to (Philly, Baltimore and Washington traffic [im literally only coming for the A380!])

As a GCH and in J Will they accept my bags early like they would in London (opening at 5:30am) and at Philly (when they had 2 flights they would accept me early as a silver)?

Should I be accepted, and get airside, do you think they will prevent me from using the lounge until the 216 boards?

And finally Is it direct BA staff who do the customer facing roles (CSE agents)?
Thanks for the help!