SJSharky -- I partially agree with you on the 0.5 multiplier. I think it is reasonable when you consider that most M fares (AA's lowest) are significantly less than the full Y fare (usually much more than 50%). It is not so reasonable on W, H and Q fares. I would like them to introduce a sliding scale multiplier based on the different types of coach fares - but I doubt it will happen as there are so many of them and they change frequently.