APEX Helmet NVG Overrides

[TroyT 6]

I've completed a new skin for the Special Purpose uniform and helmet (see attached).  The last piece of the puzzle is getting the NVG slot override to function.  In the config I have this:
 

Spoiler

class cfgWeapons 
{ 
  class ItemCore;
  class HeadgearItem; 
  
  class BSF_Viper_Helmet_black_F: ItemCore
	{
	author = "Troy - BS-Free";
	scope = 2;
	scopeCurator = 0;
	scopeArsenal = 2;				
	weaponPoolAvailable = 1;
	displayName = "BSF Special Purpose Helmet, Black";
	picture = "\bsf_uniforms\data\Viper\UI\icon_BSF_ViperHelmet_Black_ca";
	model = "\a3\characters_f_exp\opfor\headgear_o_vipersp";
	hiddenSelections[] = { "camo" };
	hiddenSelectionsTextures[] = {"bsf_uniforms\data\Viper\BSF_ViperHelmet_BlackBlue.paa"};

	class ItemInfo: HeadgearItem
		{
		mass = 40;
		uniformModel = "\a3\characters_f_exp\opfor\headgear_o_vipersp";
		modelSides[] = { TCivilian, TWest };
		hiddenSelections[] = { "camo" };
		subItems[] = { "Integrated_NVG_F" };

		class HitpointsProtectionInfo
			{
			class Head
				{
				hitPointName = "HitHead";
				armor = 6;
				passThrough = 0.5;
				};
			};
		};
	};
};

 

 

 

        subItems[] = { "Integrated_NVG_F" }; - is supposed to prevent night vision devices from being equiped while this helmet is equiped per this page: Arma 3 Characters And Gear Encoding Guide

 

It's not working though.  It seems to me that it was working at one time but I can't be sure since I've been working on so many elements of this mod package. Does anybody have any experience with this function?