Caffeinated gels on the course?

At Ironmans do they usually offer both caffeinated and uncaffeinated gels on the run course? I am doing CDA. I plan to take caffeinated gels during the run and wondering if I should try to carry my own or live off the course.

They had both at the Texas 70.3. The boxes were sitting on the tables at the aid stations and you could just grab whatever.