Just bare in mind that the zelos kit is supposed to be very prone to leaking.
Even non-tobacco flavored eliquids can be amber in color - and most eliquids darken at least a little over time. I’ve had a few darken to the color of coffee. Most of my eliquids don’t last long enough to do that though.I got my kit over the weekend and began using almost immediately. First two days, I reduced my cigs down to 3 each day (from about 10-11, normally); but yesterday I smoked 4 - mostly because I am trying to see what the differences are. I am also switching in between the two Halo/Evo e-liquids I got. I can't yet tell a huge difference between the two, even though one is higher PG and the other higher VG. Although the menthol/tobacco blend isn't as "sweet" at the menthol (which is primarily spearmint) - and it does actually taste more like a "real' cigarette. At this early juncture, I don't think I like the sweetness too much.
BTW - I am guessing (hoping) that the amber color of the menthol/tobacco blend is 'normal'? So much of what I read on here talked about darker colors potentially indicating older juices; but, then I also didn't see too many of you using tobacco blends.
I will continue on...