Luck/Turmoil versus Nothing.

[Finalgenesis]

I'm guessing that having less variety of good event does not affect the chance of scoring a good event in the first place. eg. What you said on same number of events from shorter list.

I assume the mechanics to be:

1) event generation check
2) If event occur, roll good or bad
3) if event good, roll event from good list.
4) if event bad, roll event from bad list.