Me again, took the advice on primer, cleaned up some near invisible mould lines and now have a respectable (to my eyes) gloss black finish on my Porsche. However it is not to the standards I have seen by other modellers. I did cover it after painting, but still have some very small dust marks which I am sure can be polished out.
As I am in the UK, some trade names may be different, I have available T-Cut, Brasso and regular toothpaste. Advice required on the best course of action from here to achieve a good finish before I start on the decals. If possible I do not want th rub down and repaint.
Thanks in advance