Total immersion speed it up class - 3 hours in the pool on a Friday night... super useful, exhausting, and my left shoulder is now cranked for the week. Taking a week off swimming...
Few minor adjustments: slightly less rotation, hand entry at the other arm's elbow, relaxed neck.
Then we used the Tempo Trainer - started at 1:40. Count strokes: 18/19 per length. Then reduce to 1:39 and keep the same stroke count. All the way down to 1:30. Must be getting faster to make that work.
Good practice in the future - use the TT with a focal point to get faster while maintaining stroke count and form.