Hi AuthenticPeach, I have encountered some bugs related to this mod and Shark (and Peach's) Military Uniform Improvement. (Tested on a fresh SP save only with the mods required to run Authentic Z and Shark (and Peach's) Military Uniform Improvement mod)

The first bug is more of an aesthetic bug that's only related to Authentic Z from what I can see, but there can be more too it. When you wear two Shells Ammo Strap (AmmoStrap_Shell1, and AmmoStrap_Shell2) from Authentic Z, AmmoStrap_Shell1 is not visually displayed on the character. This does not affect the vanilla Shells Bandolier (AmmoStrap_Shells) as wearing this item, and AmmoStrap_Shells2 will correctly show both straps.

The second bug is caused by the usage of both Authentic Z and Shark (and Peach's) Military Uniform Improvement mod. I have observed that when you have the Military Gas Mask Bag equipped from the Military Uniform Improvement mod, causes Shells Ammo Strap (AmmoStrap_Shells1) from Authentic Z, and Shells Bandolier (AmmoStrap_Shells) from Vanilla PZ stop displaying the items information (E.g Encumbrance, Condition, Insulation, effect etc etc). This only specifically affects these two items, as the other Shells Ammo Strap (AmmoStrap_Shells2) is not affected, and still correctly displays the items information.

Furthermore, I have noticed that if you hover your cursor over the bugged shell straps (Either Vanilla, or from Authentic Z) you get flooded with errors as the error counter in the bottom right screen of PZ is constantly increasing.