Alex, that is not a very deterministic test.

Luck is modified by terrain. If you wanted to do a realistic test, try getting one of each base type of province (1 Forest, 1 Coast/Riverland, 1 Mountain, 1 Barren/Desert).

Then test.

Then you can more accurately judge the effects of both luck and unluck. Just doing a home province test is more like shooting in the barrel. Because if one of your 'testers' is on a river province/coastline and the other is not, suddenly that coastal province has terrible luck no matter what because it gets hit by flood/hurricanes while the mountain province gets 'good' events like mines.