This is our first RTW. Doing AONE5 starting in LAX. We are AA EXPs and hope to maximize miles, maximize true first miles, and visit some places we have never been (BKK, JNB/CPT/VFA, MEL, AKL).

Our current itinerary is:

LAX-MIA-BGI-JFK-SYD-AKL-MEL-HKG-BKK-NRT-DPS-HKG-JNB-VFA-JNB-CPT-LHR-MCT-LHR-LAX

We only have 19 segments but have just over 60K miles (79% in true first).

One option we were considering is LAX-MIA-JFK-BGI-JFK (all w/out stop over), but are concerned about the connect time and 1 hour turn around in BGI. Has anyone ever done this turn? Do they make you go through immigration, back through check-in/security, to get back on the plane, or can you transit? Because of our worry about new passport rules and possible delays, we've done MIA-BGI-JFK which has 2 hours 20 mins in BGI.

Thanks for any feedback you can provide.