I made a tempering overhaul mod.

Tempering Is Totally Sensible (T.I.T.S.).
In vanilla, each tempering tier would add a fixed amount of AR/DMG to your base AR/DMG.
Meaning an Epic iron dagger has +5 base damage and a Epic Dragonbone Warhammer also has +5 base damage. This is stupid.
Tempering tiers now increase percentages of base AR/DMG. Eg.: Fine = 110% base, Superior = 120%, Legendary = 160% base, etc.
Spent a few weeks making this, hope it's ok to advertise here.