This patcher creates armor overrides for your entire load order ensuring that (1) all furry races use the Khajiit variant of headgear (except for Cervids and Equines) and that any changes made to vanilla armor are not overwritten by Yiffy Age itself.
Tools required
xEdit. This is straightforward. Just make sure you can run it from within MO, if you use MO. the STEP project has good instructions on the setup.
How to use
Copy the BD_Furry_Armor_Fixup.pas