Here are two Jetboil cups. The older version is what appears to be a bare aluminum one whereas the newer cup is a much darker anodized finish (the picture fails to highlight the significance of the color difference).
The older (lighter colored) cup weighs in about 5 ounces whereas the newer (darker colored) cup weighs in about 5.5 ounces.
That being said, what surprised me was the fact that the construction of the lighter cup is much better than the heavier one. It appears that the fins on the older cups have been made much stronger and sturdier. The new fins are slanted and assembled sloppily. It can also be bent and easily. The old fins hardly budge even if pried with a coin. In conclusion, here are the pictures of the fins:
I am not going mad, am I?
