Today's swim was a last minute-design of a pyramid with 5 slow, 1 fast, 4 slow, 1 fast and so on. It worked well with good-for-me 'fast' lengths of 2:14 min/100m and 2:10min/100m and an overall length above 1200m. I finished with some bilateral breathing sprints and managed 2:09min/100m as a best. The whole set was 1533m which is my longest swim for many, many months.