I didn't actually use my Tempo Trainer for the workout. But, it was still meant to be something of a tempo training workout. I swam 6 X 500. It took me about an hour and each repeat was right around 10 minutes.
This is the longest I have ever swum in one session. I'm moderately tired, but feeling great overall. I'm glad that I did this set today. I think it's worth doing again sometime before the race in August.