Thought I'd give this a shot since I've just got the shiny charm. :D
Breeding an english Lucario (5IV) and a Japanese Ditto, willing to hatch 500 eggs and will update every 50 eggs!
Batch 1 (0-50): Nope!
Batch 2 (51-100): Nope!
Batch 3 (101-150): Nope!
Batch 4 (151-200): Nope! (Switched...