Lag issue when triggering scripts

[Adrianis]

Well, a slight off-set of timing could be a good idea, as things collapse generally it will come in stages as one part breaking causes another to collapse etc.

How many entities being activated are we talking about here? In 10's, or 100's?

Also, is there any lag as the objects actually fall & hit the ground, or is it really just the moment they get activated?