Given speed is an BIG thing with light armor but 50% in fight.... Why not move it out and replace it with another buff. Where is the point in having one of THE defining buffs in an armor tree if it is cut 50% as soon you fight, or using light armor then. Heavy armor is about resisting damage, light armor about mobility, but with that reduced significant the whole point of light armor becomes mood. So remove sprint and replace it with something meaningfull. Right now going solo means wearing heavy armor, that splits the population into heavy armor able to solo, light armor forced into groups.