Serious question?
Theoretically, if using a medicine dropper bottle, the juice taken would come from the bottom of the bottle where the thicker Vg would tend to settle. More vapor.
If using a drip style squeeze bottle, the juice taken would come from the top of the bottle where the thinner Pg would be. Less vapor.
All theoretical, mind you.
As theoretical as the anecdotal evidence that most long term vapers remain healthy for it. Yeah…more vapor, more flavor. As you have to have vapor as the carrier to experience it, sensible to conclude.
Agree and my answer here to the OP's proposition is then that the better mixing (in this example) of denser settled liquids, mostly VG, is re-balancing an attribute or constituent in the VG that enhances vapor production, whatever that is. And
that, as I've emphasized elsewhere, is the proportion of
water that makes that juice perform well. Since water breaks down explosively and at far lower temp's than PG or VG it is the volatile ingredient that serves to violently atomize both. But no increase in potency likely. You can't have what wasn't there to begin with. And I don't think merely adding water will help. Think the proportion has to be ideal for the mix. As well it may be for the particular device config if we had a better understanding of the mechanics of vaporization.
I do believe this helps in good measure to explain to the extraordinary
internal performance which develops in strain balanced highly symmetrical well oxidized closed coils. As well Kanthal's exceptional temp uniformity such typically exhibit. Why I so highly recommend new vapers learning how to make/use one as a baseline reference for both vapor and flavor production.
I'd add that not all recipes see significant separation. Not all flavorings have this tendency. Nicotine as an ingredient commonly does and being lighter rises to the top. Another phenomena often reported explaining why we sometimes get a big kick or throat hit from some sitting juices. However, it could happen as Anna noted that the juice wasn't mixed well from the beginning then seems to increase in character. Separation could certainly be the culprit.
Good luck.