Good news.I made a rebuild of 1.8 ohms and am running at 9.8 watts and am vaping 50 vg 50 pg and am having no mouth burning sensation.It feels great and a real relief that I can keep on vaping .It shows my problem lay with my pg and I also changed my temperature just to be on the safe side.I think my next move will be to go full vg and thin it with distilled water like I was advised.Thanks for all your help I am really happy now.
I'm not too sure you should come to that conclusion on it being pg just yet. First, you're still using quite a bit and at at lower power levels which might make it less evident. Same thing goes for nic which if too high for your tolerance will produce irritation short and long term. No, you're more likely to be sure if you run an isolation as suggested earlier.
Here you are on power where you stand and it seems to favor you (I assume a 5/64" 9/8 wrap single, use the "Advanced" tab and expand window to wide)…
30 AWG 9/8 1.98mmØ = 1.93Ω @ 9.8W 181mW/mm²
And the 181mw is just a tad to the high side of a good reliable warmth for most. The higher this figure the warmer the vape will be. I generally target 165-195 for good production. Even as low as 125 for juices with flavor notes usually sweet that shine on the cool side. So it is about watts but relative to surface area of the wind. This website will help you figure out what temp's work for you and in finding a home for troublesome juices.
Two things. You can gradually adjust your nic by buying or mixing two nic levels and combining the two to reach a target on the fly. Like mixing 12 and 9 mg. Or if you buy purchase extra flavor and dilute to a percentage with straight pg or vg. Then def give yourself the opportunity to try vaping some straight vg and then vg with flavoring.
These are things you can and should try to better pinpoint the cause of the irritation. Could be a combo of things like nic and pg working with a specific flavoring type. But to get to that level of understanding means isolating pg and nic first. Lowering power of itself will only reduce the impact of an ingredient to any sensitivity not eliminate it. And we all hate surprises.
Very best of luck.
