I think there is a slight blur on the labels already (as well as the background glow). I hesitated at making it too strong so that the labels would be readable. I might try increasing the blur slightly and seeing what the result is. The sheet effects in CC3 allow you to do all sorts of things so there may be something I can try to make the labels look a bit more inky, rather than printed.
Looking at the blurs, it may look a little better with a decrease on the settlements and marshland, as well as a slight increase on the labels.
For those interested, a breakdown of the symbols:
- Black and White (August, 2008 Annual) ... map border
- Mercator (January, 2007 Annual) ... trees
- Pete Fenlon (January, 2008 Annual) ... mountains, hills, compass rose
- Handdrawn (Symbol Set 1) ... settlement symbols, whirlpool, waves, marshland
The scale bar is mine