[wren43c4]

One thing I noticed is that for the final step for the 70durability quality above 7000 is that the final byregot's blessing you don't have steadyhand 2 up. So there's that 10% chance it'll miss. My solution was to just remove one of the Hasty touches before it. You lose some durability and the hasty touch, but you have the 100% chance on Byregots which basically means you'll hit the 4000 minimum (unless you're crazy unlucky with hasty touches earlier). I also adjusted mine so that it uses steady hand 2 every time.