ok so i have some pitting on my roof that irritates me (the PO didnt have a garage, no surprise in sydney) so i bought a touch up kit

they have tiny bottles and expect you to use this MASSIVE brush...i mean comon! its a 12ml bottle, that brush can nearly hold 12ml's worth.

so, does anyone have paint scratch tips?
i have both the paint and clearcoat, ive applied the paint but i dnt know how im going to apply the clearcoat and make it blend in....its going to be this strange looking blob. do i apply a drop's worth and sand it all the way back which will be quite a bit....

tips on how to do paint scratch repair properly would be excellent!
i have metallic paint (324) oxford green which makes it that much harder