No, not at all. This is why I asked. You have a good point. I don’t know how this parameter tracks for very small props.
I actually have never generated values for props lower than 5". So anything less than that is a guess. Thinking about it these values are based on a bunch of tests I did when I first created the parameters. There has been a lot of development in the small prop market since then!
If someone gets me pwm vs static thrust for a few very small props I can extend the curve further.