I didn't misunderstand anything.
BT H+K > H+K: This is her back turned H+K followed by her front turned H+K high launch. You don't actually have to throw in that jab. I was saying it was telegraphed because if you're going to be option selecting a back turned jab before your preferred launch, you're gonna be read easily with the hold (i.e. being telegraphed).
Not including the jab keeps your all of your launchers, both facing forward and with your back turned, as true 50/50 options. That includes any throw of your choice.
The KK starter combos you present are already in the OP. I know exactly what you're referring to, I'm not dimissing anything you're posting. I'm just saying, some combos you listed involves more use of the stun threshold, in which those combos aren't actual combos. They are just stun > whatever > launch. That can be done at any time (which is totally not a bad thing at all, you're suppose to be creative, but as far as listing what's the most optimal without the mix up, were not listing that here).