Shulker boxes seem to use cullface on the bottom with this mod but chests, signs and beds don't seem to touch it at all. Seems like a bunch of very easy fixes - I'll try it at some point.

Most of the cases listed in this ticket have been fixed aside from the chest lock front (cannot be done since that part of the model isn't within the collision box, although it may be possible in conjunction with MoreCulling custom culling shapes) and the tops of signs (which I deliberately left out of the PR since it'd look weird if carpets were placed on top of signs).