Re: F-35B "BEAST Mode": Thing is, BF-02 can carry all that ordnance for aero-loads purposes, but can't employ it because it doesn't have the systems fit; it was/is an aero-loads and performance test aircraft without a lot of the production systems. If I remember the plans correctly, BF-04 was the first B-model with a full systems fit.
Still, it would be nice to get that full ordnance fitment.