Please take this seriously, the finest tool for applying MINISCULE amounts of CA, accurately and delicately that you will ever find is completely free of charge to modellers of a certain age.
All you need is the smallest size of pin vice and insert your CA applicator.
Oh, sorry, yes the applicator.
For modellers over a certain age, carefully remove a hair from your nose, or under that age, remove an eyebrow hair and use that.
I have tried all sorts of things to apply CA, this is undoubtedly the best. The nasal hair is slightly better for some obscure reason. Initially, due to the oils on the surface it will not pick-up much adhesive, but after dipping a few times, the tiniest drop of glue can be picked-up and applied.
Don't laugh, try it - I guarantee you will be amazed!
Cheers, Jabb