When playing Skyrim one of my must have mods is one that makes the shields render in the player's back, and I think it would be awesome to be able to do this with this mod.

Added a setting to the addon Globox1997/BackSlotAddon@83f8beb

this feature is requested multiple times already but I have to give the same answer:
since the vanilla mc shield (or basically the player model arms) is unproportionally, the handlebar of the shield will stick inside the body of the player which looks odd