Review of Sour Flavor-TFA:

I am very surprised by the positive reviews for TFA Sour...   I am a huge fan of sour-type flavors, but I honestly do not get a sour effect when I mix with this.  A slight tartness perhaps, but definitely not sour.  I believe that a placebo effect is coming into play here.  Experienced mixers on forums everywhere believe that this flavor does very little to bring the Sour.   If anything, TFA Sour seems more likely to MUTE tart flavors than to accentuate them.   I wish somebody had told me this before I wasted so much time trying to make this one work.