What I do is cut stripes out with my stripe cutting tool. Then starting with one end of the stripe, work it down very slowly with a trim iron, while keeping it pulled taut. When you get to the curves, work slowly and slightly "stretch" the monokote around the radius, so the outside of the radius is pulled around the inside of the radius (I'm not sure if this is clear). If you move too fast or pull too hard, the th width of the stripe in the radius will shrink. I have only tried this on stripes up to about 3/4 inch.