A method for selecting a most suitable golf club from a set, where the shafts of the set are of different levels of flexibility along the shaft, includes using a pressure sensing mat upon which the player places both feet while carrying out a sample swing to measure forces applied by feet of the player during the stroke. The pressure sensing mat provides output signals indicative of vertical forces, lateral forces, both heel to toe and side to side, lateral speed, both heel to toe and side to side applied by the feet of the player during the swing and a processor operating on the signals selects certain ones of the output signals to calculate a load factor from the selected signals which is used to select one of the set most suitable for use by the player using a color coding system applied to the load factor.