But no matter what, the strongest TH for me comes when my batteries are fresh. I vape at 3.7. If, as is commonly stated, 5v and 6v lead to bigger a TH, that would indicate to me that voltage and battery power is the main consideration when looking for that "ultimate" TH and things like nic level are more of a subjective factor.
I agree completely. The best throat hits I've had are when the battery is fully charged, which probably means it has more power to heat the liquid. (And if that liquid has enough PG in it, THs are fine.) I haven't done any tests relating to nicotine level.
However, I recently bought some liquids from a supplier and could receive NO throat hits using fully charged batteries (and that was with 100% PG, 24mg, double shots, and aggressive THs choice on all six bottles). So, now, thinking back, battery power is definitely a factor, but there has to be other factors, which is probably the amount of PG and other ingredients used when it was mixed and how much of each, probably how long the liquid has aged (or steeped), how old your atomizer and/or cartomizers are and the quality of the atty and/or carto, and on and on.
Here's an example: I received my order from FSUSA today -- RY4 and a sample of RY5. I filled a bunch of cartos with the RY4, mixed with about 1/3 apple, 1/3 RY4, and 1/3 Glycerin. Throat hits and flavor were fine vaping it right away. (Thank God I received it today and didn't have to wait until Tuesday!)
Right now, I'm vaping (and testing) the RY5 sample (tastes like Maple), with about 50% RY5, 25% Apple, and 25% Glycerin. I'm not getting any throat hits so far (using a 1000mAh eGo that has at least 10 more hours of life). So, maybe it needs to age. I don't know.