Do: Context mode, "contexts" selected, grouped by context, ordered by flag, showing only next actions.
Collect: Remaining projects, "inbox" selected, sorted by flag.
Ticklers: Remaining projects, "library" selected, grouped by start, sorted by due, showing only remaining tasks.
Waiting: Remaining contexts, "waiting" selected, grouped by due, sorted by project, only showing remaining tasks.
Someday: On Hold projects, "library" selected, grouped by next review, sorted by due, showing only remaining.
Here's what my new configuration looks like:
These are my new perspectives, thanks to Curt's advice. Any more advice is definitely appreciated: