The number made to create an adaptation is actually quite small (just has to be consistence) and where the 4 to 6 x race distance came from is “purely” a guess.
You might be right (although 4-6x is from the bulletins), and I’ve seen from your posts you’ve done this for a while.
At what numbers made (as in times race distance) have you seen the best improvement in race times before you change a parameter for 100, 200 and 400 respectively? (in general, there are always individual differences of course).
Do you also have anything for 800/1500?
