Thanks aacharya. I double checked and you're right. It's only 2 bags unless you're *G.

I didn't realize that regulations required the baggage allowance of one flight to dictate the allowance for the PNR. I thought it always depended on what cabin/status you had with the carrier you checked your bags with. Thus, I would have expected the OP's allowance to have been economy on the outbound and (possibly) business on the return.