Ok, here's a situation I haven't encountered yet. I am planning a LAS trip, and can upgrade with the lowest fare on the outbound, but the return is almost sold out in A. What I want to do is book the outbound in the lowest class (use miles to up), and the return in Y, allowing for a Y-up to A. Since coach is wide open on the return, there is no way to book the itin this way on CO.com without pushing the outbound up to Y as well. If I book by phone, I lose 50% of the outbound EQMs. Any ideas?

Robin