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I'd say the 70% PG, and the Nicotine level is what did you in... When you go below 1.0 Ohms, you have to really dial back your Nicotine, and up your VG content to 50% or higher. I regularly use 12mg in my 1.5 Ohm tanks, but when I sub-ohm, even to 0.5, I drop my Nicotine to 3mg to cut back on the burn and the buzz... Nicotine is absorbed faster as heat increases Also, you're not getting any "real" cloud because of the PG content. VG is the cloud producer, and sub-ohm coils really prefer 50/50 to 30/70 mixes so you don't fry your throat...

Nicotine is absorbed faster as heat increases. This has been proven by researchers many years ago when testing the patch... Yes, this has been discussed in several threads, but always warrants re-stating You are not technically increasing your intake by sub-ohming, but your body processes the Nicotine faster when sub-ohming, which is why you should reduce the Nicotine levels in your juice. You get more volume and it is absorbed faster (hotter), so it takes less to do the same job, so to speak... Think of it like shot-gunning a beer, or taking shots of Bourbon, rather than sipping...

If you're use to 6mg at 1.5 Ohms, you may want to dial on down to 1.5 or 2mg You'd be amazed how much a difference it will make to drop your nicotine levels by 50-90% when you sub-ohm (depending on how low you go). Since your dropping your Ohms by 66%, and increasing your heat (dramatically), you'll probably find that 3mg is still too much, since it is only half what you were using at 1.5 Ohms?

Excellent advice, Earthling. I failed to mention I'm vaping 6 mg in both instances. My main reason for going sub-ohm was to further dial down my nicotine intake. Seems paradoxical that I'd be absorbing more nic by sub-ohming a lower mg content, but it makes sense the way you put it. I'll brew up some 50/50 at 3 mg and post back.

You know me, I only use one juice (mostly). 10ml, tank and temp control, looks very promising. For me it would really depend on the airflow. My original mini was a bit restrictive. The new one might work better. I like a nearly unrestricted airflow.