Got the Shiny Charm recently so decided to try MM'ing some Shinies.
Hatched 690 eggs, got 4 shinies.
Shinies at egg #220, #290, #320 and #690. Will continue with Karrablast since all 3 had normal Abilities, first was Bouffalant.
Update: 18th Jan 2014
5 Shinies at 1455 eggs, updated excel...