On the last body I did, I just masked the whole thing with 3 inch masking tape.
Then lightly cut around with an xacto to only expose the edges.
Took me all of 5 minutes and no more worrying about fogging.
(Remember to lightly score. You don't want to knick the CF. Even if it tears uneven when you pull off the excess, who cares, you only need it to prevent fogging on the main chassis.)

As far as using the CA Drip or Q-Tip method:

The Q-tip method only coats the edge.
Meaning, you will still see the fibers underneath unless you use a Marking pen or sand and re-apply the glue.

With the drip method you actually get a tiny "Bead" of glue that is slightly rounded.
It rounds out due to the surface tension created by the sides of the chassis.
When it dries, all you have to do is wet sand it for a mirror finish. (1000 grit or higher)
Only problem with this method is that the glue takes longer to dry, so fogging is an issue unless you prep properly or just mask like I do.