If I helped you – by accident – then you’re welcome 😀
I understand why you would be confused by the 75% at the maximum. I am not too happy about this myself. The reason was that you could compare it to the other pen tools and their opacity – however, it might be more confusing than helpful 😀
Anyway, thanks for testing! Keep it up – and please report anything else you might find weird.
Thanks,
Niels