Ugly Jet Captain: probably the best post in here and yes when catching up you focus on keeping sight with the preceding aircraft. It more and more looks like the B17 was most probably not in the airspace block where it was supposed to be according to the plan., but we'll see.
@ Flying_Scotsman :
If the "Air Boss" is talking continuously for 20 minutes
where did you get that from ? is there a link to an audio recording ( e.g Air leaks) of the Air Boss frequency ? Many spotters on shows have receivers and listen to the display frequency ,