Hey @Richard_Sather,
Just reading through this post again, and one note regarding 4.2: it’s actually not as simple as stated here.
I’m told that the internal technical limit is “a maximum of 45 total dependents plus dependencies on one task”. However, in addition to this limit, there are some other limits in a few various parts of the Asana UI - these are not currently consistent with each other or with the “45 total” limit, unfortunately, and I don’t have a list of what all of those UI limits on dependents and dependencies are.
I’m told there is a backlog item for Asana developers to clean this up and make the dependents/dependencies limits consistent across the product, but I have no idea if or when that might happen.