Yep, the 'sins' I was refering too are the 'missed' stone chip, which allows water to creep in, no chance of drying out, and it rusts away behind the surface - the first indication you get is when the whole powdercoat peels off.
I remember watching an epsiode of Wheeler Dealers where the TVR powdercoated chassis was in a terrible state.
Powder coating, done correctly, is very robust and should last for years. Chipping of the coating can be a minor issue, but the Morgan has an advantage in that much of it is visible and can be detected easily.
Modern paint coatings are almost as robust as powder coating and less prone to chipping. A top restoration company I know moved away from powder coating to painting of suspension components for this reason. They restored my car 15 years ago and all the suspension components are still like new, as is the chassis. Had the car rusted in a couple of weeks they would have collected it and rectified the problem.
The suspension on the Super Three is on view, which makes it even more important that it looks good as well as being protected.
It will be interesting to see if the new management will address these issues more successfully than the recently departed Steve Morris managed with the M3W.
