Ahh! That's really close to the other way I was attempting, but obviously I was getting something wrong there as well.
If I understand, checking 'UID !=' is what you mean by "can't reference two of the same object at the same time"? Because I had wondered about pick closest just picking itself and if it would.. So, I suppose my first Thingee instance is in fact doing that.
I'm also trying to deepen my understanding on instances. I've since learned that I can just destroy the original and do away with that doublespeak at the top. It can even be destroyed before creating new instances. (the mind boggles)
Sorry I couldn't just give the capx. Forum won't let me post links yet
Thank-you very, very much for the help!!