Hi Megan,
If the durations vary, dmBLOCK (or dmUBLOCK) is good.
But any time there is an amplitude modulator (behavior in this case), you probably want AM2. So use of AM2 with behavior is a separate question from dmBLOCK vs BLOCK. AM1 does not seem to be a real option here.
Does that seem reasonable?
- rick
