The one thing I would do differently in analyzing my AncestryDNA results:
keep track from the very start of all those people I “figured out.”
Approximately twenty descendants of my great-great-grandparents have tested. Quite a few more are descendants of various ggg-grandparents. I’m not currently using the AncestryDNA results on problems on all of their lines, but I’m constantly seeing the same usernames in shared matches.
Keeping track from the start of the ones I had figured out would have saved me a great deal of time–even for those descended from people I’m not currently working on.