It looks like SkyDemon draws a box around airways, which causes some differences compared to the CAA charts once you get to the end of the airways.
Compare L10 here on SkyDemon vs. paper chart:
  

And Q41 near the Channel Islands:
 


Any thoughts?
Thanks
Phil

There is quite a bit of that near DTY VOR and Cranfield.  Change the level above which Skydemon hides airspace and the differences become really apparent.

Apparently its because the CAA chart shows quite a lot a non-standard step downs that aren't described in the textual descriptions of the airways.