Some oils, unintentionally, aged in storage have improved for my taste. Opposite to that are my Hindi oils which are presented to us in early phases. They will take their time to beautify. E.g. Compare Zak s aged Lushai to his non aged Mr Barn. One thing I have honestly come to realise, although I am not sure about it is, that artisans sell us already pre-aged oils or oils which are literally beautiful even when new. Maybe benefit from evolved techniques so these oxidise faster. I am not sure though.
I can respond to this a little bit...
In general I don't talk about my techniques much - I choose to talk about the oil. In the end, the scent is what matters, and I don't like how some vendors talked on and on about "technique" that in my opinion - ended up confusing or misleading people. Lord knows I got enough messages from folks bitching about their confusion.
Oud for me is quite simple - and it's easier shown than said. Maybe I need to make some short videos of me making tea - as my approach comes largely from techniques from the kitchen. Anyone who cooks would "get" how simple this can be.
Regarding your question about aging...
Some oils come out smelling incredible and, in my opinion, are ready for sale. Others I shelve and age for 6-12 months or 2-3 years. No rhyme or reason to it other than sometimes too many things are in the shop, and other times I need something to add in and so one comes off the bench and up to bat.
I find it really interesting how quickly some vendors sell out of their oils. I don't know if more people are buying their oils than mine, or if I am distilling more than they are. Literally some of my oils have been in the shop since I opened it. I don't get how an oil sells out in a week or a day, unless there was just 3 or 6 grams of it to sell.
I bring this up because I have oils on in the shop that 'age as they sell'. They've been in the shop since their release. If it's taking me three years to sell off an oil - that oil will be different today than it was when I started selling it. This in part may answer your question about aging...by the time one gets around to trying something, it may have some age on it - and of course, it'll continue to age on your own shelf.
Conversely, when I lived in France, I lived in the capital of wine producing region. At the wine festival, the new wines would come out and people could literally tell how long to suggest aging of wine before drinking it. They would taste it and know that it would be ready in two years, or better to wait 15 or 20 years Siri could be drunk at it's optimal point. I think this is true with a Oud oils, as well. Sometimes you can tell that a few years down the road...whoa!
I think one of the greatest disservices some vendors have done is to lead people into thinking that we vendors distill every single oil we sell. For me - oils pre-dating 2012 are definitely going to not have been commissioned by me (as I started commissioning distillations in 2012). Most of those oils, however - are distilled by the people I distill with. So their DNA is already part of mine, so to speak.
Other oils, like some of the oils I've sold from the 70's, 80's, and 90's are oils I've "picked up along the way". Some are acquired by collectors, others by trusted vendors I work with.
The disservice I think that has been done to the community - is that every vendor does this. People have been led to believe by some vendors that they are not doing this. It's pretty obvious that not every oil being sold is distilled in-house. But I get enough messages and read enough on these message boards to get the feeling that people kind of understand this, but also are surprised to learn that not every oil sold by a vendor is distilled by them.
I bring this point up again - because this bleeds into your question about oils being pre-aged.
I also find it a little silly to compare one vendor to another on some oils, as an oil from one vendor may be more or less fresh, while another vendor is selling an oil distilled 12 or 15 or 20 years ago. They aren't a 1:1 comparison, The same way that comparing the newly vinted wine to a cellared wine - even from the same vineyard - makes not a good comparison.
Hope that adds some clarity to your question about fresh and pre-aging oils