I recently ordered some 100 mg/ml nicotine and (since I'm still waiting for the package with the VG/PG/Flavours) mixed my first batch with store bought 0nic juice. It's the same flavour as the one I previously had premade at 11mg/ml. Both were 55/40% PG/VG, my nic is 100% PG and I mixed 6ml of the 0 nic with 0.8ml of the 100mg/ml. So that should be 11.76 mg/ml nic (a little more than the premade one I had before), with around 60/37 ratio.

I read that PG has more of a throat hit, so since there's a little bit more nic and more PG, I'd expect my mixed one to have more of a throat hit than the one I previously bought ready made, but there's a lot less of a throat hit.

So I'm wondering, either

• my 100mg/ml is actually lower concentration, but I highly doubt it since it's a reputable seller
• my previous one had more than 11mg/ml, which could be possible
• I screwed up mixing, highly doubt it, I used a syringe that's accurate to 0.02 ml and double checked everything.
• there's a difference in the nicotine used.

So I'm wondering if the last option is actually a possibility, i.e. is there a "quality" difference in nicotine that affects throat hit?

Or what else could it be?

My previous one used to scratch my throat quite a bit, whereas I barely notice the one I mixed.

[Edit]

Also, followup question: if there is a difference in the nic <--> throat hit relationship, what factor determines it? If that is even known.