New Option - Physical Output - Bounce Source?

[KingFish]

Our Bounce dialog has recently changed in 9.0.2 a new option appears for "Physical output"

I have sessions here that were mixed ITB at an outside studio. The master Bus was assigned out a custom Label, that was assigned to a specific converter for monitoring that is no longer available in my Studio.

All Auxs and tracks were routed to "Lavry 1-2" the Master Fader set to the same Output, and Plugins across the Master Bus.

All I have to do to activate these sessions properly, is go into the i/o dialog, and assign the Lavry 1-2 bus path to HW A 1-2 and the sessions are just as they were.

Now...

Is there any difference between bouncing these sessions selecting

- Output - Lavry 1-2 (Stereo) ---> A 1-2

OR

- Physical Output - A 1-2 (stereo)

In the Bounce Dialog?