Detecting Drive Space Changes.

Hi All

I have created several zoom widgets. 1x battery bar, 1x RAM bar and 3x
drive space bars (data (root),sdcard"Internal",emmc"external")

to refresh my battery bar I use a simple context "battery changed". Works
perfectly
to remresh my RAM bar I use "Variable set" %WIN = Nova launcher. Works as I
need. (RAM chages too frequently to use anything else.)
my issue is with the drive space widgets. i used to use the same context as
my RAM bar but since storage space rarley changes I wanted something a
little more acurate especialy since the task runs shell commands and quite
a few variable splits,find/replace etc.

I have since tried using "file modified" as the context. I have tried the
below as the file name in the "file modified" option

*to update my external card*
/data/data/com.android.providers.media/databases/external.db
or
/mnt/emmc

*to update my internal card and root data folder*
/data/data/com.android.providers.media/databases/internal.db
or
/mnt/sdcard

The thing is when browsing with tasker, it can't see inside the "/data"
directory (i have to set the db file location manualy). I can see in my
file manager that the .db files in there do indeed update when ever I make
a file change to the drives but tasker cant detect it (tasker can see
inside several other folders of my root drive, so why not this one?). and
when setting the /mnt/xxx directory, tasker doesnt detect any changes so I
asume it will only detect a file (not a folder).

So, does anyone have any idea where I'm going wrong or is there some kind
of bug i've stumbled upon here? Are there any alternatives you can suggest?

I look forwards to any response

Regards
RBX