Thanks to the label format I have just finished doing round 7, many thanks Nige.
I did the prints (48) on Monday evening, took me one hour and ten minutes.
This evening (Saturday) I printed out the labels and also printed out my commentary in a label format, stuck both on, took about one hour from start to finish.
The Australian recipients should receive theirs Tuesday onwards as I'm posting Sunday. The international ones should be posted on Monday after a visit to the Post Office.
It's amazing how quickly one can do this if you get organised and you run a conventional B&W process. Leaves me with time to ponder the next neg for the next round.