I usually drip 3 drops when I am doing a normal refill, and about 5 drops when I am filling up a completely cleaned or blown out atomizer.
If you blew out the atomizer, and then dripped only 3 drops and it leaked at the battery/atomzier connection, something is wrong.
I have never gotten any of the leaking you are getting at any time .
As for the drip tip/atomizer connection, I wonder if you have it connected right.
I went for about a day before I realized mine was not pushed all the way on.
The little gasket/ring thingie should not be visible anymore once the drip tip is snapped into place.
I originally put mine on so the gasket/ring thingie was resting on the atomizer.