So my last order of LUX XL cartos seem to be slightly different. I noticed right away that the individual plastic wrap was different. The when I took it out, I immediately felt like it might have been a hair lighter. Unlike everyone else probably, I prefer plastic caps (which I saved from my older 902 cartos) instead of the rubber ones that come on the LUX, so when I put on the plastic cap, it fit in easier. At that point I realized I must have been right about the weight because the metal tube on these seem to be just a touch thinner. As far as taste an vape go, these are possibly identical, if not a touch better even. Definitely not a downgrade though, so either way I'm good. I'll let you know how it lasts.