you should probalby mention WHAT that couple of drops should be

I had a leek (yup leek ) on my airline on my rk-62 project. I just put a few drops of oil (not gun oil, a bit thicker oil I use for my bicycle) and aired it up. The leak went considerably down after about2-3 seconds. I let it rest for a couple of minutes before adding a few more drops and screwed the tank in again. 2-3 seconds and it stopped completely.

Always use paintball oil inside a paintball marker.
It increases the life of your O Rings, of the internals, and it keeps the marker running smoothly. Never a good idea to use anything else.

Its gold cup. And a couple is 2 drops, lol.
I work on tippmanns at my fields store sometimes. I know what Im doing.