@BachRules said:
...because I am not supposed to admit there is a chorus-effect under some circumstances.
Nonsense, everyone here is well aware of the chorus problem and it is spoken freely. That is why it is not recommended to use velocity x-fade on solo passages. I can only guess about the reason no one answers your question about the cross-fades ranges, but I would suspect it is simply that no one cares.The information provided in the manual about the split points is clear enough and requires little divination.
Just a note: the "chorus" effect is called "phasing" colloquially, but it is technically wrong. Phasing requires two identical samples and that does not occur in VSL at all. Civilization's "doubling" is a much better terminology.