I'm gonna try 70/30 VG/PG with a 20mg/ml salt based on the zlide and see what happens.I settled on that ratio of PG/VG because it produced the vape I like from the equipment I use.
I could use that ratio in just about any device on the market today.
The PG/VG ratio is the least of your concerns at this point.
Focus on the TYPE of device you are using and the nicotine content of the juice you select.
And not to discourage you, but in over 8 years for vaping, the only thing that tastes and feels like a burning cigarette is a burning cigarette.
A MTL type vape will have a restricted draw. The airflow is low. ( think juice box straw)
A DTL type vape will have a more open, much less restricted draw. ( think garden hose)
The amount of vapor produced by each device varies, but in general, the more vapor = the more nicotine you get per puff = the lower the nicotine concentration can or should be.
You are currently using a DTL type device with a very high nicotine content juice.
Watch a few youtube review videos for your device. Notice the draw strength, speed and duration used by the reviewer. IMO, it is nothing like the way I was accustomed to smoking cigarettes and is a more "hookah" like technique.
Something like the Innokin Zlide tube kit is a bit closer to the experience you are in search of.
I would still suggest using a lower nicotine level with the Zlide, perhaps 20mg/ml of salt based nicotine or 10-12mg/ml for freebase nicotine. VG content of 50%-80%.
HTH
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Do I just use the coil that comes with it or do my needs require a different one?