I've already said I probably won't. But I want to see under what circumstances, or maybe all circumstances, my Texas brethren will do it. 

It will make life easier when I'm there. Moving the pistol from the car box to holster always leaves a few seconds of exposure, which once got the attention of a local officer.
If you don't have a Texas CHL you might not be permitted to open carry. Read the law carefully!!!!!
I haven't yet read the whole new statute.