Overexposing one stop is no big problem with b&w film. You could process your negs normally and will still get printable results. However, grain increases notably with overexposure. So, for best results, use a fine-grain developer (Perceptol, Microdol) and develop to normal contrast. These developers loose about 2/3 film speed, so you will get almost perfectly exposed negs.(posted 8245 days ago)Georg