Have Kreia in your party.When you usually equip a armor peice that doesn't specifically say, "Doesn't Restrict Force Powers" all your defensive powers like Force Speed and Force Valor will dissappear. When Kreia is in your party you can cast whatever defensive power you want and it will have the same effect on your Character due to the "Force Bond" between you. You can use this glitch only with Kreia but it allows you to equip some heavy hitting armor like Mandalorion Heavy Battle Armor but still use Force Speed.