I don’t know firsthand, and I can’t guarantee what anyone else says, but I found this:
From August 2014:
From December 2018:
I don’t even have secondhand knowledge about that question, but here’s what one person says (again, I can’t guarantee it):
The quote immediately above, even if accurate, probably doesn’t answer your second question adequately, but that’s the closest I’ve found. Maybe @Dr_Milker, @yyy, @tando, or some other knowledgeable person will see this thread and give you a more detailed answer.