You bring up a very valid point,
@n00bVape.
I am a strong advocate for vaping new/unfamiliar mixes early and often. Whether it is a single flavor concentrate mix, or a complex recipe; I believe, the best way to understand
how that mix develops, is to do frequent test vaping. There is no harm that can come from vaping "too early," other than the momentary displeasure of a less than stellar vape. If one is willing to accept the risk of this possibility... go for it!
The part that is often unknown, forgotten, or ignored; is,
don't make changes, based on these early results. At least... not yet.
DO write down your observations, perceptions, and thoughts about possible changes you might want to apply... if things remain unchanged. But, refrain from applying them yet.
Repeat the test vaping, and note writing, until you are certain the mix is no longer changing. I (personally) won't pronounce a mix "done" for at least a month or two.
If you really can't help making adjustments early... do so, by making a separate batch with the desired changes, and allow the original mix to continue to age unmolested. This will also permit side-by-side comparison.
Why is this important? Because there are exceptions to every rule, and we all taste things differently... our palates are unique. Here are just a few of the exceptions that I have learned through my own testing:
Rule: "All custards require at least a month."
As
@uthinkofsomething has already mentioned; Inawera (INW) Custard is a satisfying vape after only 3 days, and reaches full development in only about a week/week and a half. Yes, it is not as "thick" or "eggy," as say Capella (CAP) Vanilla Custard. But, that is a matter of ingredient selection, and not steep time.
Rule: "All fruits are 'shake & vape.'"
While this may be in large part true (maybe 2-3 days to fully bloom); I have learned (thanks to other DIYers like
@Letitia), that many orange concentrates benefit from as much as 2 months, to really show all they have to offer.
Rule: "All tobaccos requite at least a month."
Because of early test vaping, I found one of my own long standing ADVs (all day vapes). I discovered, that I like a single flavor mix of INW Am4a (a tobacco concentrate designed to mimic Amphora pipe tobacco; after only 3 days rest, and no older than 2 weeks. For me; it does need a couple of days to mellow just a bit, but after two weeks it loses too many of the aromatic notes and is much less interesting. Again, frequent test vaping was the key, and I learned not to make more than I can vape in a couple of weeks.
These are just a few examples, that I have learned, apply for me. Others may have entirely different experiences. My point is; without trying, I never would have learned.