Actually, EC12yo is not a single barrel bourbon. It may be considered a "Small Batch" bourbon, but I can't remember off the top of my head. For what it's worth, EC12 is a bourbon who's taste changes dramatically with my mood. I can't quite put my finger on when or why but sometimes I can't stand it and other times I can't get enough of it. I do however always get that menthol flavor you describe. I kinda like it