If I'm booking an award ticket for a friend in Y (non-status) DAM-LHR-EWR (BD, CO respectively) stop in EWR then EWR-CLE on CO and returning CLE-LGA/JFK-CAI-DAM (CO, MS respectively), what is the baggage allowance on each leg? I've called CO 3 times and have literally gotten a different answer each time.

BMI told me the baggage allowance on the DAM-LHR portion depends on the partner carrier's allowance--but it isn't clear what CO's allowance is on a DAM-EWR routing.