I vape 100% VG. I have no allergy/sensitivity to PG, I simply cannot stand the taste. To me, it has this cloying artificial aftertaste that just does not go away.
Interesting that you mention that in regard to PG. I find the same thing, even though others notice an artificial sweetness of VG. You and I have similar taste buds, don't we?
I like high VG as well (100% is ideal for me--although I will occasionally vape up to 30%PG if the particular juice is "worth" it to me). Although I do have a sensitivity to PG (slight--not life threatening allergy or anything). Even if I didn't have the sensitivity, I do find an odd aftertaste in PG, too. I also do not like TH, so max VG takes care of that issue as well.