This is really looking great Immolate, I can see you vying for another compass here.

As regards to the not synching problem... why don't you draw it in a style similar to the rest of the map? As in, an outline using some nice thick, precise brown lines similar to your roads to draw some concentric circles and then some twisty stuff going on using the same colour and size brush.
The thing is, this is a map, and I'm not sure you'd get a nice rendered computer effect in the middle of such a minimalist layout.

Anyway, I'm sure you'll sort it. You always do.