Hi guys,
I'd like to contribute my findings on here. I got the shiny charm a few weeks back and have been breeding poochyena's. I'm doing batches of 330 due to having 11 boxes empty. Batch 1 and 2 both had 2 mightyena's. Male was german.
Batch 1 - no shiny
Batch 2 - 2 shinies. This 1 had an extra egg and the extra egg just so happened to be shiny :)
Batch 3 - 1 shiny -Poochyena
Batch 4 - 3 shinies -Houndour
Batch 5 - 2 shinies -Froakie
Batch 6 - no shiny -Absol
Batch 7 - WIP - Treecko going to switch to batches of 300 cause I'm down a box
1,981 eggs hatched.
8 shiny
Eggs #381, #661, #875, #1081, #1242, #1262, #1401 and #1561 were shiny