Your armor chips twice graphically somewhere near both 35% and 70%, and has been the source of controversy between Calimdir and myself. Its been recorded that the armor can drop at these points on video at a full 100 points per break sometimes. For the main defensive recap, the formula is: When type of defense > same type of attack You get a 60% reduction to damage. When Impact force > Recoil Resistance (head computation and attitude control + total weight) You'll stagger and 20% defense drop So if you get staggered with 1800KE, your defense will drop to below 1500, meaning powerful 1505 Lampourdes will hurt you. Calimdir stole these findings from Reachingperfection, which is a good resource for statistics. I suggest you try there to find more on the subject.