Asked the mod author tjhm4 his reply below: Thanks for your comments. It's taken me a while to get to the bottom of this and it looks like a quirk of the vanilla game. The tldr; is that the mod is working as intended so everything is fine. However, the oddness with damage values shown on item cards probably cannot be stopped. You could argue its a feature (kinda!) though, as I'll explain below. The longer version: In Skyrim the attack value for weapons shown in the menu is calculated taking the users perks into account, so if you invest in one handed perks that increase damage the menus reflect this increase in your damage by increasing weapon damage values. KYE implements armor effects with a perk that modifies your attack damage depending on what weapon you are using and what armor your target is wearing and this works fine. But when you go into the menu and check your weapons attack value you don't have a target, so who does it choose? Well, it turns out it chooses you! So the listed damage is the weapon damage you would acheive if you attacked yourself. It takes KYEs perk into account in this calculation, so it tells you how much damage you would do to yourself with your weapon and given what armor you are wearing. The drawback of this is if you want to get back to the vanilla style weapon damage values you need to take your armor off before you check weapons (minor irritation). But the plus is that say you want to know how effective your weapons will be against that irritating bandit chief wearing some steel plate armor. Well, if you can find a set yourself, you can put it on and now all your weapons' damage values will tell you how good those weapons are against any given enemy. If like you can study your own armor sets, which is kinda neat in my opinion. However, irritatingly, the same is not true for magic - although KYE allows armor to affect magic damage, this is not reflected in the menus. Oh well! Let me know if you have any questions. I should add something about this to the main mod page.