Hi,
It would be much more useful if when using the "Paint Selection" Tool; you could select a smaller brush size (or just have the size to be tiny). At the moment it's too big and selection with it is horrible. See the screencast below.
When selecting profiles from a complex drawing it can be quite tedious work and it doesn't have to be. I have a big monitor (Wacom Cintiq 24") and I also tried selection with a stylus on the screen (just to make sure it wasn't my dodgy mouse skills) and I still get the same behaviour. Also zooming in and out doesn't help significantly either.
I will attach a separate screencast below this request showing selection done in Illustrator.