I have one small question. Currenly OW Emerald through the AA AAdvantage program. If I also join MPC in which there is a one-time $50.00 fee (is this also true??), will I still be able to be allowed to use CX's lounges by showing my OWA Emerald status, but my tickets will be reflecting basic MPC status?

Some members here on FT are both EXP and MPC Diamond. What's the trick! :-)