Before you make another reduced mix of your recipe, may I suggest you take half of what you already mixed ie. if you made/have 30 ml take 15 ml etc., or whatever amt you want and put in another bottle. Add the same amount of pg/vg in whatever ratio you want. Then shake and taste to see if flavors can now be tasted. This will serve a couple of purposes.
1. If you were going to make a new mix only using half % of the same flavors that you used before this will accomplish the same thing with an already steeped mix. Just wait over night for the extra pg/vg to blend with the flavoring....Be sure to shake the dickens out of the new bottle before sticking it back in the cabinet. Leave the cap on.
2. You can then judge(after tasting/vaping) if the % of flavors is where you want them. Even if this is not the desired end mix you want, its better than just throwing it down the drain. At least this may help to answer some of your questions, and you will still have some of the old mix to try again at a different %. This mix will work if you need to reduce further . (I would not add any more flavoring to this bottle)
If you want a higher % then you need to use the original bottle mix(should still have some left in the original bottle).
Remember I only gave examples of how many mls to use. You could use 2.5ml of old flavoring and add equal amounts of pg/vg....same results.
This is just what I would do......YMMV
p.s. The cheescake flavor I complained about earlier has now been fixed.... by using the way I explained above....It had fully steeped and was over flavored. Now is very good.