there is a good website about that...dont ask for the link...i dont have it : (
But its out there....
Lots of drips can mean tears associated with the work...that can be yours and the target's or someone elses...but yea tears.
some shapes will give you a clue...i have a good pic of one of my jars that really worked well and it kinda looks like two people embracing...take a look if you like, the pictures are public or whatever on this website
just kind of unfocus as you look at it and let the stuff be interpreted by your unconscious.
i just let the residue build up...you can read too much into it sometimes i suppose but, like you, i like to interpret it.
I hope it is working out for you, just be patient and continue to do the work. Its a great and easy spell