Should I use discovery or swis verb to add child objects/pollers to agent based nodes?

We added several hundred agent-based nodes and found our discovery profile with the check for update agents does not get through all of them adding volumes and interfaces- maybe just the first dozen or so.

Knowing we are going to have 1000 agent-based nodes should I try to use a single discovery profile or just script a swis verb API to add items for each?