I'm not sure but I would advice against doing it before someone with more knowledge can advice...

From what I understand mount = /dev/mmcblk0p1 which is exactly the ~/MyDocs parition hence its alternative name is "mount = /home/user/MyDocs" so if you change it to / you are looking at quite a mess up... Currently its mounting the vFAT partition if you change it to / then you are trying to mount everything which is the mess IMO...