Gavin I know how you feel its happened to me. You but your first clear coat on you stand back and it looks great , you apply another coat and it looks even better. Then slowly you notice a small mark on your art work , you say shit whats this and before your eyes it starts growing like a virus , your heart misses a few beats then you fell like hitting it with a axe this will fix it.
It seams to happen when the top coat is applied too thick in some areas. Because this is happened to me in the past I stick to the mylar.
