Bill. . I literally had all the above info typed up earlier today (including noting that Runaway Mountain is half indoor and the outdoor section is pretty well shaded). . .LOL. . but my phone wouldn't let me post it from the airport (s) . . . Buffalo early, then Orlando in afternoon.
finally back home and on my computer, before conking out after an intense few days in Ontario.
anyways. . .I'd recommend against the drink bottle, or doing any soda, as that will dehydrate you quick in the Texas heat. . and trust me, it's going to be BRUTAL.
I'd suggest buying a Dasani Water, early, then just keep the cap and refill it frequently from water fountains thruout the day.
as noted, La Vibora has terrible thruput (tho it does have a single rider line). . but I'd still recommend doing that first, as those seats get HOT in the sun and later in the afternoon, it can be painful to sit in the hot cars.
if you can handle it, what I would do, is wear a very light long-sleeve shirt. That will help immensely with sunburn prevention, as well as help keep you cool (just look at lawn guys, they pretty much all work in the heat in long sleeves)
have fun, SFoT is a great park.
no SFFT this trip tho?