Escape Path
Without abnormality Conf3 landing is for fuel saving. Two other factors compet with this are maintenance of reverse and brakes wear. According to an Airbus study on the subject brake oxidation and replacement cost can nullify fuel saving. Therefore the ideal combination is Conf3, Reverse idle and A/B low. If this combination doesn't suit the landing distance then it is modified in the same order. First go for Flap full if further reduction in LD is required then use reverse full and higher A/B is the last priority. In slippery conditions A/B is better for symmetrical application. In your example could be one side brakes catching. Regards