Encumbrance Capacity masterwork naming is misleading

While testing a way to increase my encumbrance capacity, I made a test backpack with only normal/major enc. cap. without extra skill modifiers



Then went on and, totally naked, tested with and without this backpack the change of my max weight.

Naked


Naked with this backpack equipped


Obviously the naming of the masterworks effects made me think I could increase my total capacity by 19.8%, but in truth the effect is an increase on the Hevy Lifter tactics skill.

Now, if someone without that skill unlocked equips this backpack would see no change at all in his capacity, while others (like me) would think it affects the total max weight.

Would it be possible then to rename this effect into something more clear for the user? For example "Heavy Lifter Bonus" or something similar would definitely make everything easier

 

Surely this is as designed? The effect isn't a modifier of the Heavy Lifter skill, it's just adding to the same stat. Basically it's 19.8 percentage points, adding to a stat that is already >0. If you use the backpack on a character that has no existing Encumbrance Capacity modifiers you should see the pure 19.8% boost. Heavy Lifter skill, Obsidian Potions of Capacity, Belts of the Ox, Imbued Jewels of the Ox, mounts and their associated skills, and spec'd Strength of Earth buffs all modify this stat as well. And they all add together, they don't compound.

This is true of most stats in the game, all the modifiers from different sources are added together and then applied to what they are modifying. Imagine two daggers with +50% poison effectiveness, adding up to a +100% poison effectiveness modifier. That turns a 10 damage per tick poison into 20 damage per tick poison. It's not as if the first dagger adds +50% making it 15 damage per tick, then the second dagger adds another 50% making it 22.5 damage per tick.