My floor is currently being carpeted but the fitter has hit upon a problem which are a few curved steps or steps with a radius. He's suggesting nosing or stitching. But the most cost effective nosing which is plastic is ugly and the most attractive which is brass/bronze is really expensive. He's also suggested stitching but says this may not be durable. Has anyone got any views on the stitching method or can you suggest any other way of fitting a carpet on to rounded steps?