The product actually marketed as "Classic" Coke comes in a red/golden can and is caffeine- and sugar- free. It has corn syrup instead. Is this the coke people have been using for the coke flush? I think some people may have a confusion in terms and probably been referring to regular coke as classic. I've yet to find confirmation anywhere in these posts. Would the flush yield different results if using regular rather than classic? And more intriguingly, which one did Dr. Sutter had in mind when formulating the flush?
Taste and palatability seem to be important issues for folks deciding on a flush method (and regular coke's much better tasting, if you ask me :-)).