That's very cool. Unfortunately, it raised it even more! Now the minimum is over 70%! I don't really understand that, since it did get it to start fine when it was set at 60%. But I can't complain, because it must know what it's doing.
I'll have to figure out something else, because this is a very large fan (140mm) that's too noisy at 70%. (Ok, it's barely audible, but I'm picky).
Anyway, many thanks for the super fast answer.