I purposely left it to the readers imagination when I wrote the OP. I fully expected lots of folks to say "nothing would change", perhaps a few would say otherwise, but, now that we've let this question sink in for a day or so, let me explain more clearly what was running through my head when I posted this...
Over the past 15 years or so (I think my original NC CWP was 1997 ?), I've encountered two situations where I was certain I was being assessed as a potential victim. In both cases, multiple (2 and then 3) potential assailants were involved. Both times I was armed. In each case I managed to convince the potential assailants, through body language and verbally (in one case a verbal command), that there were easier targets and they should move on. Neither case rose to the level of any crime being committed upon me.
In both instances, if the potential attackers wanted to take me on, they were close enough that I would not have had time to draw my weapon ahead of them making physical contact. Although I managed to dissuade them by coming across as someone who would fight back, once they were inside 20 feet or so, and had not presented sufficient threat to rise to the level of "deadly force", I had no defense to prosecution if I chose to draw my weapon. The thugs could have reported me to the police and I would have been arrested.
Until SB-299, TX 46.035 and TX PC 9.04 did not match. As was mentioned, TX Courts found that a person could be prosecuted under 46.035 for displaying a weapon before the incident reached the level of Deadly Force. This discrepancy, and similar issues with NC law created the circumstances where on two occasions there were criminals (potential) inside my "personal perimeter" and it was probably too late for my gun to be employed effectively. (This is difficult to describe in words and make it into a broader scenario.... For the purpose of this discussion please try to imagine how this COULD happen, rather than focusing on how it can be avoided. - That's a separate discussion. At least I'd like it to be a separate discussion.)
I've dealt with this by changing tactics, certainly.... A wider perimeter before beginning verbal interactions, greater situational awareness, quicker movement away from oncoming trouble. But until now, I have not had the latitude to consider using a weapon, the threat of force as described by
PC 9.04, should I find myself in a similar situation in the future...
Would I, should I, draw earlier?
Let's face it folks, a determined criminal (or group of) that doesn't declare their intentions until they are inside your personal space makes employing a weapon in self defense difficult. If you're standing face to face with a bad guy, your still-concealed weapon is going to do little good for you. (I'm oversimplifying, yes. Again, rather than tell me how to improve tactics, please focus your comments on the question of when to draw.)

SB-299 provides the latitude to change tactics, however slightly. Should I?
For further reading, please consider this document: (link will open PDF file)
http://www.safeism.com/pdfs/SNContacts.pdf" onclick="window.open(this.href);return false;