Glad to see this transition happened so quickly. I like this move.
I'm curious about what triggers the category that the hub is put under. (Business, Money, Food, Style, Autos, etc.) Is it based more on the content or the title? Most of my hubs seem to have gone into the appropriate place, but I do see a couple which might be questionable.
For example, on one of my unpublished hubs titled, Overcoming Opioid Dependence, Chronic Pain and Pain Killers, it is listed under Literature. It is a personal story rather than a health guide, so that may be the reason it's not under Health.
Another one is Navy Life in World War II, the story of my Dad's military service, categorized under Politics. My other Navy hub is under Family (The URL mentions "Dad"), although the title refers to finding military records.
Understanding this will help me align my groups to match the main sub headings.