If it's your
juice you want to dilute (I am assuming, since you said that it was a bad vape when mixed) the simplest way to do so (IMO) is to buy some unflavored at the exact same nicotine percentage and PG/VG mix, and just start adding it to your overflavored e-
juice, 5 or 10 ml at a time, shake, taste, etc. To me, this is the easiest way-- it avoids math and having to use an e-
juice calculator AND your own math by trying to dilute in the right percentage of nic, pg and vg separately every time. You may find yourself adding more pancake flavor as you go if the strawberry remains totally dominant. Usually, that wouldn't be a huge amount, and it wouldn't be enough for
me to worry about the nicotine level, I mean, I can't imagine you'd be adding more than 1 or 2 percent of it.
That is how I would approach it, but there are other ways to do so. I do think this might be the easiest way however.
If you are talking about the strawberry concentrate itself? I am in agreement with other posters about just using less of it next time.
Live and learn, but I think you can most probably fix this mix. I DIY and I have yet to make a flavor that was unvapable--- AFTER modifying it some.
Good luck!
Anna