I no longer have my 50s but if my memory is correct, mine looked similar to yours.

My comment would be to compare both units and if you feel the panel fit is lacking quality fit, take it up with you Dealer. Dealer May fob you off and tell you that it is normal product variation and within spec or there may be a way for a technician to come and adjust the centricity? If there is noise contact of surfaces as they on open/close, then your case is strengthened for poor QA;QC. As you know, these are not cheap products and you are entitled to complain if not entirely satisfied at that price point.