Yeah, when I first started vaping it, I knew there was something in there I couldn't quite place.  Might not be menthol, maybe a little pine type flavor.  There's something in there beyond sweetener that has a very faint cooling/tingling flavor.  Something that's completely absent from any real tobacco flavor.  It may not be menthol, but it kind of has that effect.  It really does remind me of pine a little.  It's something I noticed in a couple of Indigo's tobacco flavors as well.  I could barely notice when I first started vaping it, but I really noticed it a lot more when I tried it again after not using it for a year or so, and doing only NET.