>I was sure there was another thread that determined the HookSetDefault was not being called on children. I searched but did not find it but >will search some more. Maybe whoever it was that posted it could chime in.

The issue was (and still is) with HookPreSave()...

I took a look at mmBusinessObject.cs and for what I see the HookSetDefaultValues() is called from NewRow() but not from NewEntity()...