lol! Yes, that's what I've noticed too. Some are just plain better at some things than others...even if their original aptitude says otherwise.

I know what you mean by some of them remaining in "nothing" mode once placed in a zone, but even then, if I tinkered with them, and kept placing them in that area, they eventually caught on.

Maybe what was happening, in my case, is that, unknowingly, I was dragging them to a slightly different spot each time, and eventually hit a spot in that zone that wasn't so tricky.

In either case, I agree that these little characters are fascinating to watch and work with. When I have to work with some more than others to get them going, I just look at them as "special cases" and give them a little extra TLC.

(Of course, if they could think, they might not think of me using my stylus like a cattle prod as being "tender loving care" lol!)