Just got my replacement canopy parts from Airfix. Fantastic turnaround, sent them my address on Wednesday and had the parts this morning. The good news is there is no crack. The bad news is the distortion is just as bad and the general appearance is worse. It looks like it has been dipped in Future really badly. Arrived in a sealed bag. You would have thought that they would check the parts before sending. Will be emailing Airfix again.