My experience is that candles should always be cured for a minimum of a week, longer is preferable but at least a week before a test burn anyway.
We are often faced with the chore of comparing scents from different sources, and the same scents in different waxes, or the same scents with the same waxes and with different additives, and the list of variables can go on and on with no mercy on the candle maker. You know you can trust your nose to assess what smells good and what smells bad, but when we are talking about scent throw, what we are really talking about is intensity.