Thanks for looking into that- I just tested that and it seems to be a good work around. I guess in the future the more precise way would be to use vertex maps in cases where you really want to control growth in particular areas, but those are a little more difficult to animate. I’ll have to do a little more research on that method. I know there are a few Xpresso setups and Python scripts out there, so I’ll explore that option a bit more.