This is a simple mod that removes the head requirement from (8) Armor perks. The affected perks and their new descriptions are as follows:


Cushioned: Half damage from falling if wearing all Heavy Armor: chest, hands, feet.
Well Fitted:25% Armor bonus if wearing all Heavy Armor: chest, hands, feet.
Matching Set: Additional 25% Armor bonus if wearing at least three pieces of Heavy Armor.
Reflect Blows: 10% chance to reflect melee damage back to the enemy while wearing all Heavy Armor: chest, hands, feet.


Custom Fit: 25% Armor bonus if wearing all Light Armor: chest, hands, feet.
Wind Walker:Stamina regenerates 50% faster in all Light Armor: chest, hands, feet.
Matching Set: Additional 25% Armor bonus if wearing at least three pieces of of Light Armor.
Deft Movement: 10% chance of avoiding all damage from a melee attack while wearing all Light Armor: chest, hands, feet.


Implications:

For the perks that simply reduce the required number of matching pieces from 4 to 3, wearing a conflicting piece of armor will negate the bonuses.

Wearing "Mash Up" light or heavy armor from mods that increase the number of wearable pieces of armor would previously negate the bonuses if wearing more than four pieces of light or heavy armor due to the way the perk effects were constructed. This is no longer the case. The effect is active at 3 or more pieces of armor.

This is a non-DLC mod. Only Skyrim.esm and Update.esm are required. For a DLC version that includes DLC armor types, try http://www.nexusmods.com/skyrim/mods/54371/?


This mod was made as a request to remove the helmet requirement from the Deft Movement and Reflect Blows perks. This mod is the result.

The new version was remade to include Update.esm so it no longer reverts changes as indicated in the comments.

Enjoy!