Am I right in assuming that soft stepping is to remove the 3 iron shaft, insert it in the 4 iron head and butt trim to the correct length. Hard stepping is to remove the 3 iron shaft and tip trim to length before assembling it in the 4 iron head. Softstepping makes the shafts softer and hardstepping makes it harder. Double stepping is 3 iron shaft to the 5 iron head, etc etc. Comments please.