Ash getting it straight.
Ash (head mechanic at MC Cyclery) came over last night to work on my bikes (what a champ!). He brought over this big tool which he says is the tool to buy if you’re ever going to buy a tool! It was a Park DAG-2 hanger alignment gauge and it’s used to check to see if the derailleur hanger on the bike is out of whack and it’s also used to align it so it’s not out of whack.
It turns out both my Anthem and my Reign were out (the Anthem by a good inch or so) and even the brand new Azzurri roadie was out! It explains why sometimes, even with a new straight hanger I failed to tune the gears 100% perfect.