Good stuff, Catt.
I wonder if one should always switch your production to non-settlers in the early game on the turn you are about to pop a hut, in order to increase you chances of getting a settler. Then switch back to settler(s) after popping the hut.
This is why blitz units are fantastic for leader creation. Modern Armor (or Panzers) in particular. 3 attacks per turn... a vet unit could get promoted to elite (attacks 1 and 2) and then generate a leader (attack 3) in the same turn. Yeehaw! Of course, by that stage in the game, leaders are usually not very important.