bounce mono, loss of gain

Cubase
5

Quick check:

PANNING LAW Setting: -3dB

  1. track in mono PAN L62 → I lost 1.73dB;
  2. track mono PAN C → I lost 0 dB;
  3. track mono routed to a Group panned to L62 → I lost 1.73dB;
  4. track mono routed to a Group panned to C → I lost 0 dB;

PANNING LAW Setting: -0dB

  1. track in mono PAN L62 → The track has now 2.83 dB more than the original;
  2. track mono PAN C → The track has now 6.02 dB more than the original;
  3. track mono routed to a Group panned to L62 → The track has now AROUND 2.83 dB more than the original, but the null test doesn’t give me silence, somehow the export is not perfect;
  4. track mono routed to a Group panned to C → The track has now 6.02 dB more than the original.

So I deduce that the the purest method is:

  1. leave the the panning law setting to -3dB;
  2. put the pan at the center and now bounce the track;
  3. once reimporting the track put the pan the same way it was before.

I deduce also that mono groups and mono tracks are the same if we’re talking about dBVU but the bounce doesn’t seem sample accurate if originated from a group.