I have masked and painted the vacuform canopy of my 1/48 scale F7F Tigercat twice now and each time the paint has come off of the canopy frames when I remove the masks. I'm using Mr. Hobby lacquer and have tried it both with and without a prior coat of Future. Since doing the same thing over and over is the definition of insanity does anyone out there have a suggestion on how to get the paint to stick to the frames?