Inserting Units, Metric, Imperial, Dynamic, Annotative

I'm at a new job and there wasn't a metric template so I created one. I've also been working on setting up Annotative and Dynamic Blocks.

Mostly we work in Imperial and so the blocks were drawn in Imperial units.

When I insert some of my Annotative Blocks (Section marks and Labels, etc.), some insert scaled up 25.4 (which is what I want) and others don't.

Take the attached examples:

SOIL-Gravel.dwg is not Annotative. Insunits is set to 1

NOTE-title.dwg is Annotative. Insunits is set to 1.

I notice on my Insert Dialog Box that the Block Unit Factor changes from 25.4 (SOIL) to 1 (NOTE).

For some reason NOTE-Section Cut (Annotative) inserts at 25.4, but the Dynamic Parameters fail to scale up.

I've played around with INSUNITSDEFSOURCE and INSUNITSDEFTARGET, but neither seem to change. I understand they only work if INSUNITS of the block is 0. Which I have also toggled.

NOTE-Title.dwg

SOIL-Gravel.dwg

NOTE-Section Cut.dwg