On Feb 26, 2014, at 8:29 PM, Megan Olsen <[log in to unmask]> wrote: > So is this true in all cases? Is there any way around that? It's true in all cases. But the easy way around it is as follows: 1. Make TWO fields. Call them A and B. At start(), make them hold the same exact stuff. 2. Agents read field A to get their sensor information, but they make changes to field B. 3. A special agent, scheduled repeating, but at a later ordering (say ordering = 2), copies field B to field A, overwriting field A's contents. Note that if your agents move around, they'll need to make sure that they don't overwrite each other in field B. Sean