[XRaysVision]

Skarg, you are exactly correct. The reason the rules say to choose your action *before* movement is so that you know how far you're allowed to move if you complete your *intended* action. However, the rules also say that you can change you mind about your action at any time during the turn, to any action that has not be precluded by the distance you moved, readied weapon, and your state of engagement. That it is to accommodate reaction to a changing tactical situation as all players complete their moves.