[Graham]

Post a photo of the offending problem Graham, it may make problem solving easier.

The lighter fuel seemed to work, others had mentioned using waxes or T-Cut etc, but I want to use a clear over lacquer and was worried that using a wax or oil would cause me other issues afterwards. The main problem had been where the masking tape edges had left a slight ridge of adhesive, the lighter fuel has removed this but also some of the paint under the line where the edge of the tape had been. So I will need to respray this area again, but it is relatively a small area, so I think I can re do this without having to rework the whole moulding.