There has been some talk about reformulation. Perfume critics Turin and Sanchez say so in their latest book. According to their nose, it's not so much about power, but about the fact that it is now less floral than it was, and more with a woody-licorice aspect (which could be lavender). I have bought some old stuff online, and I have a 2-3 year old bottle (which could be older), and don't notice that much difference, but of course the latest batches could be different. I must say I don't get much of a harsh lavender in either version. To me, it's a slightly sweet, citrusy top, some aromatics and flowers, and then an intense barbershop musk in the drydown. Now you've made me want to try the latest version...
In any case, as you say, 3eme doesn't sound like a frag that is faked. In the past, there used to be an aftershave as well, which of course is much weaker than the edt, but at the moment, there's only the edp. You should also correct for the amount of frag you're using; different atomizers can deliver more or less liquid.