Like I said it is hard to tell from the photos you posted. But I think for now I will stand by them being a true Roan. It is true that in a non-patterned horse a real Roan will have no roaning on the head and legs making them solid other than socks and blaze. Tobiano often masks the leg area with white markings to above the knee. When you have enough Sabino to make the amount of roaning in your 2 girls it most often also gives you LOTS of white on the head, neck, and chest. I can't see most of the front half of Sassy who probably does have some Sabino markings as I said in the first post. Teaspoon may have very minimal Sabino not nearly enough to produce the roaning you see.
This is my current APHA stallion. He is not a Roan even with all the roaning you can clearly see. Cowboy is Homozygous Tobiano. He also tests Negative for the SB1 Sabino gene. He is one of the other "Sabinos". Notice his facial markings.
This is my daughter's mare soon after we rescued her. It shows her roaning the best. She is not Roan but rather is Positive for the SB1 Sabino. Not nearly as much roaning and again look at her face and head. Very different from Cowboy.
And last but not least one of our Bay Roan Tobiano mares. No other genes but Tobiano and Roan. You can just barely make out where her black points on one of her legs would be.
Pinto horse genetics is a fascinating thing. I am constantly learning something new. Especially since not all of the patterns are fully identified. When you add 2 or more patterns together it is easy to get lost and confused. Sometimes it is much easier to find out what they are NOT as opposed to what they ARE. Good luck!
Edited by Barefootin, 31 July 2013 - 09:09 AM.