Its not just the flames that make a yb a yb... first off look at the Belly, thats an easy way to tell. Second off look at the pattern and color difference of the ones I pointed out as YB's, there is a slight difference, but it is there. It almost "melts" away more than the other ones.
Better pictures and we can solve this problemIm just doubtful you got a perfect clutch with those 6.