An effortless 1800 metres focussing on swimming in a relaxed Total Immersion style with neutral head, using the Two Beat Kick and noticing how well timed my kick has become when I breathe left and how I still have a fair bit of work to do unravelling what changes when I breathe to the right.
I appear to be swimming pretty straight when breathing left (surely no coincidence that this is not the case when breathing right) and can remain on track sighting only once or twice per lap.
In the sea it will be a different matter of course.
I am talking to the trustees of the pool about some one day workshops in this pool next year. Let me know if you are interested please.