Now I'm digging back through my itineraries to see what I bought via TYP and what those flights posted as. Unfortunately, it must be some kind of system maintenance time, so I can't log into my TY account to pull up past trips.

One random fun fact I noticed: A trip I booked via AA with a bump voucher from earlier this year, NYC-LHR-ARN-HEL-NYC, posted three of those as fare-based (which would be expected, since an actual AA agent booked it by processing a voucher), BUT the ARN-HEL flight (AA marketed, AY operated) posted as distance-based.