Most of those thinking about tackling a long swim instinctively feel it’s necessary to Do much to build endurance - more yards, harder laps. But a focus on Receiving is ideal for long distances.
Provided one was proficient in setting up the different functions of the Lap Track, I think that a short-course triathlete would benefit most from this, since it only records splits up to 50 laps.
Once you caught your breath, it occurred to you that finishing even a short triathlon might be harder than you thought. After a few "laps" you thought, "I can't believe I'm so out of shape."