F1Mom, I'm too brain-damaged to read your whole post at one time! I hope the TA plan works for you and gives you the best results you could hope for.
TA is not for me. And probably not for anyone else over the age of 55. My hip hurts just watching her bounce around.
I have her mat workout. I like the set and the music. But, her invisible cueing, the self-absorption and the eye-rolling get on my nerves. At this point in my life, I can't deal with an annoying instructor, even for the greatest results in the world.