I know someone with more 2E experience will be around to offer their opinion.

I just wanted to point out that Kindergarten is more in line with preschool and 1st grade is where you see the shift to the more academic approach where they are required to sit in their seats and follow the instructions. Many a gifted child has had problems with 1st grade due to the focus on academics and it being below their ability. If your daughters are already at a 1st grade level just imagine what an extra year will be for them when they finally do start 1st grade. It seems like you have done a wonderful job acclimating them to the environment and Kindergarten is an extension of the preschool environment. But I do understand your concerns with the added pressure of their 2E diagnoses. I'm not sure what I would do if I was in your shoes, especially since DD B sounds like she is ready but A might need some more time. I suspect I would be more in line with your DH's attitude. Are you against them being labeled at school? I know a lot of people fear it, but labels can be useful in that they allow the children the help they need to succeed.