Hi,
In 2003 we had the ability to specify "All True/ First True" when multiple Destination Sets with rules exist. Even though the BP 807 documentation states that you can still do this, I can't find that option in BP 807, below is an excerpt from the documentation:
Destination Sets
The destination rule resolves a destination set. The destination set is composed of individual destination users or groups. A destination rule can be composed of one or more Destination Sets. The Destination Set relies on logic supplied by the rule to determine who (destination user/group) will receive the work list item.
The edit rule contains logic parameters which are used to evaluate the rules. When a rule evaluates to true, the specified destination rule is valid. The user selects either First True or All True.