Breeding my mare?

I have a bay tobiano National Show Horse mare who was accidently bread to a chestnut tobiano TB/DWB. She had an adorable little colt. He looks to be a chestnut, but someone said that he may end up being a palamino. His top is very red, but his underside and his legs are extremely light. I am thinking of breeding her again, this time to a DWB/QH black tobiano. Can anyone tell me the chances of what coat I might get on the foal?

Breeding my mare?
It honestly would be a very extensive investigation because you would have to look up both of their ancestries. So, I could not even guess, other than that he might be bay or black. Sorry! :)
Reply:They can %26amp; do change until around 3yrs. Even sometimes later. So you'll have to wait for him to shed or get him tested. I had a filly change colors when she was around 3yrs. Chestnut to dark brown.
Reply:Color Calculator says http://www.horsetesting.com/CCalculator1...



this foal chances are:



54.69% -Bay Tobiano

31.25% -Chestnut Tobiano

7.81% -Black Tobiano

3.65% -Bay

2.08% -Chestnut

0.52% -Black



to breed to the Black Tobiano chances are:



65.92% -Bay Tobiano

21.97% -Black Tobiano

5.86% -Chestnut Tobiano

4.39% -Bay

1.46% -Black

0.39% -Chestnut



edit: I'm curious to know if the foal now has any black on the mane or tail. If so, a Bay. If not, it sounds like a Chestnut. It's a surpise package! There are no tobiano markings so those choices are out.
Reply:I'm glad you had a healthy baby. I have to ask, why would you want to breed her when there's already so many unwanted horses out there? I'm sure you have a very nice mare, but the kill pens are full of very nice horses that have know where to go but for food.

Just asking.