Being homozygous for tobiano does not "kick him out of frame." A horse that is homozygous for tobiano can still be carrying frame. The only gene that you won't see on a homozyous tobiano horse is true roan.
Very exciting! I've always liked that stud. AI or Live Cover? Are you sending your mare there to be bred?
We're doing A.I. She'll be at our vets for up to two weeks so he can catch her cycle when it starts!! I'm very excited. Hopefully I can get ahold of my vet and get everything done with one time! A girl can wish!
here are the offspring's color chances when he is bred to a sorrel mare
25.00% - Palomino Tobiano
25.00% - Chestnut Tobiano
18.75% - Buckskin Tobiano
18.75% - Bay Tobiano
6.25% - Smoky Black Tobiano
6.25% - Black Tobiano