I’ve had the foil tool for a few years now and love the projects I’ve made. I duplicate the foil lines, align center and attach them so that the machine goes over the lines twice. Just to make sure I get a good transfer. I haven’t had a bad transfer with this technique. Make sure your image is about 1/2 inch smaller than your piece of foil as I’ve noticed that it doesn’t transfer if the tool goes over the tape. I use with maker/maker3. I have also had great results with cricut cardstock. After doing the double layers I do get great results on other cardstock like park lane.