That one pixel diff with every different character triggers me ^^

Would profiles solve this for you? I'm thinking every character you log with the add-on enabled generates a profile that is updated automatically when you drag the frames. Then from the Interface settings menu you could load the profile from another character and have the same positioning.

Would profiles solve this for you?

Yes, i suppose if i can use the same "default" profile for everybody, i'll be fine with that.

Great! Then I'll track that on #84 and I'll close this one to avoid confusion.