Dave,
sorry for not answering earlier. I saw your post only today. Haven't been subscribed to notifications for this forum.
Currently it would not reflect the Main Subsite settings, but take the package defaults, right? But isn't that the right thing to do, since these are acs-subsite parameters, and not system wide parameters?
If inheritance of parameters were required here, I think this is something that would have to be implemented generically on the level of the parameter API. I do not know if something like this exists, or is planned?
Michael
