The sundering prefix gives you a chance to hit with armor penetration. Now that ability itself has a chance to occur. What i am curious about is how exactly it works. Say you have a 10/10 sundering bow string on a bow.
You fire an arrow at an enemy, and have a 10% chance to "activate" the armor penetration. Say that you succeed and activate the armor penetration. Now do you actually penetrate their armor? Or with that arrow you have another 10% shot of actually armor penetrating?
If this is how it works, it seems AP will never actually occur, or if so it will be extremely rare.