In your method I guess you tag the rack and the individual panels. Do you comingle voice and data in the same rack or do you use seperate racks or seperate them in the same rack. I guess it depends on the job size?
You are correct with the labeling. We try to keep Voice and Data on separate racks, but of course if you only have 20 voice and 20 data no one would expect two different racks.
We NEVER mix Voice, Data, AP's, Video on the same patch panel.
And as usual TIE cables are always on the last ports of the last patch panel.