As far as I know, they are formulated the same. What people might be alluding to is the original formula was spiked with an unlisted compound, and that was the original lemon lime "flavor". I got a hold of a can of the OG stuff (rebranded) it was nice, but jak is still my fav pw, I spike mine with a little ephedra. All the new formulas flavs have same stim ingredients as far as I kno. PM a USP rep if u really need to kno 4 sure.