After talking to some people about this, I feel like it's not far enough to increase blades by 4x for backstab, and axes by +50% increased STR.
We feel like 5x backstab, and +75% STR bonus would be better.
I can't edit the first post, but I feel like this is more balanced.
Here are the numbers using that.
Current Combat System (100 Quality Weapon, 100 STR, 50% Backstab, -25% Defense, Fully Power Swing, 100% Durability)
Axes = 27.70 Damage
Blades = 20.78 Damage
Clubs = 30.01 Damage
Picks = 32.32 Damage
Shovels = 34.63 Damage
Suggested Combat System (100 Quality Weapon, 100 STR, 50% Backstab, -25% Defense, Fully Power Swing, 100% Durability)
Axes = 34.63 Damage
Blades = 48.48 Damage
Clubs = 35.01 Damage
Picks/Shovels = 34.63 Damage
Current Combat System (100 Quality Weapon, 100 STR, 0% Backstab, -25% Defense, Fully Power Swing, 100% Durability)
Axes = 18.47 Damage
Blades = 13.81 Damage
Clubs = 20.01 Damage
Picks = 21.55 Damage
Shovels = 23.09 Damage
Suggested Combat System (100 Quality Weapon, 100 STR, 0% Backstab, -25% Defense, Fully Power Swing, 100% Durability)
Axes = 23.09 Damage
Blades = 13.81 Damage
Clubs = 23.34 Damage
Picks/Shovels = 23.09 Damage