I was pretty disappointed when I discovered the shield you get after sprinting a short distance is not a force barrier. It is a temporary shield that goes away as soon as you stop sprinting or after a short amount of time, whichever comes first. Am I missing something, or does this ability seem completely worthless? I'm having a hard time figuring out just how much the shield reduces damage, because it certainly doesn't provide any additional HP indicator or prevent my HP from going down while being shot. Does anyone have tips for how to use this ability effectively?