UPDATE: after 24 hours differences between batches (on paper strips) are barely noticeable.
There is still a very strong aroma from each strip.
As usual, I tell you "trust your nose" : this is my experience, you could have different ones.
And my nose says there are minimal differences between "vintage" batches and year 2013 ones.
It seems Dior went for "fix" it, after all the controversies.
Still, a lot of people I know prefer the Iris-predominant bottles: probably there will be a DHI hoarding of different type, right now