I hate to sound ungrateful, given the prompt and considerate responses we have received from oneworld4u in a short period of time, but I still see two major issues that remain unanswered.

Issue #1: Transfers between co-terminals count as a segment.
Stated reason: Technical problem, not commercial.
FT suggestion: Use the city code (LON, NYC, etc).
Response: None so far.

Issue #2: OWE limited to 16 segments.
Stated reason: Technical limitation of eTickets.
FT suggestion: Linked PNRs.
Response: None so far.