In addition to the great info above, and just for quick reference:
You may want to see if your flavor has alcohol in it. This can sometimes lend “SnV’s” to “seem a bit harsh” since the alcohol hasn’t been properly aired out yet.
IMO, in order to be a “true SnV” there shouldn’t be any alcohol in the flavor choice(s).
But, there’s a wide berth in what folks consider to be a SnV. Some consider it to be anything that doesn’t take a week (or more) to ‘cure’/steep. (So 12-24hrs+/- is a “good to go” SnV to them)
Others consider it more literally (like I generally tend to do) where SnV means that, the instant you shake it, you can vape it with no ‘negative’ effects (ie: peppery, harsh, etc). All depends on perspective I guess.