"Also, I don't see that increasing the yScale increases the distance between the coils. It increases the height of each ring but doesn't pull it out as if you were literally pulling a spring apart."

rebuild the model. he-he... it's not that hard, I mean it only took me about 15-20 minutes to make the thing. In all seriousness though, you didn't specify clearly in the thread that you wanted the spiral to stretch like you were pulling a string apart. Guess your not getting the moon today, I've got work in 5 hours and need some sleep. sorry dude, and good luck.

_edit, although I said I would provide additional morphs if needed there simply isn't time right now. Perhaps tomorrow night I'll try to come up with something to your precise specifications. :)