The Azure is a nightmare, as I believe the yellow is as well from people such as Chesterfield having had work done in the past. From the research I have done when I had problems with mine, I think it is down to the undercoat & primers used etc. Not sure what the remedy is in all honesty though. I think the change in materials throughout the car doesn't help either ie: plastic fuel filler cap, metal bodywork and fibreglass kit (in my case) I am hopefully soon to get away from the different colours as mine is getting a fresh coat of paint all over but then again that is a very costly way to resolve it!